Home / 3,145.38-4,340.69-1,748.13

Finding the Fourth Proportional to 3,145.38, 4,340.69 and 1,748.13

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Solution

The fourth proportional to 3,145.38, 4,340.69 and 1,748.13 is: 2,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.38 : 4,340.69 = 1,748.13 : x
  2. Step 2: Convert to fraction form
    3,145.38/4,340.69 = 1,748.13/x
  3. Step 3: Cross multiply
    3,145.38x = 4,340.69 × 1,748.13
  4. Step 4: Simplify right side
    3,145.38x = 7,588,090.41
  5. Step 5: Solve for x
    x = 7,588,090.41/3,145.38
  6. Step 6: Final answer
    x = 2,412.46

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,146.38, 4,342.07 and 1,749.13
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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.