Home / 4,140.75-5,714.25-2,648.13

Finding the Fourth Proportional to 4,140.75, 5,714.25 and 2,648.13

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Solution

The fourth proportional to 4,140.75, 5,714.25 and 2,648.13 is: 3,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.75 : 5,714.25 = 2,648.13 : x
  2. Step 2: Convert to fraction form
    4,140.75/5,714.25 = 2,648.13/x
  3. Step 3: Cross multiply
    4,140.75x = 5,714.25 × 2,648.13
  4. Step 4: Simplify right side
    4,140.75x = 15,132,045.49
  5. Step 5: Solve for x
    x = 15,132,045.49/4,140.75
  6. Step 6: Final answer
    x = 3,654.42

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Half scale
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Double scale
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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.