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Finding the Fourth Proportional to 1,346.01, 1,857.36 and 756.60

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Solution

The fourth proportional to 1,346.01, 1,857.36 and 756.60 is: 1,044.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.01 : 1,857.36 = 756.60 : x
  2. Step 2: Convert to fraction form
    1,346.01/1,857.36 = 756.60/x
  3. Step 3: Cross multiply
    1,346.01x = 1,857.36 × 756.60
  4. Step 4: Simplify right side
    1,346.01x = 1,405,278.58
  5. Step 5: Solve for x
    x = 1,405,278.58/1,346.01
  6. Step 6: Final answer
    x = 1,044.03

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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.