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Finding the Fourth Proportional to 1,346.75, 1,858.64 and 749.44

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Solution

The fourth proportional to 1,346.75, 1,858.64 and 749.44 is: 1,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.75 : 1,858.64 = 749.44 : x
  2. Step 2: Convert to fraction form
    1,346.75/1,858.64 = 749.44/x
  3. Step 3: Cross multiply
    1,346.75x = 1,858.64 × 749.44
  4. Step 4: Simplify right side
    1,346.75x = 1,392,939.16
  5. Step 5: Solve for x
    x = 1,392,939.16/1,346.75
  6. Step 6: Final answer
    x = 1,034.30

Related Problems

Find fourth proportional to 673.38, 929.32 and 374.72
Half scale
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Double scale
Find fourth proportional to 1,347.75, 1,860.02 and 750.44
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.