Home / 5,142.66-7,097.17-2,904.47

Finding the Fourth Proportional to 5,142.66, 7,097.17 and 2,904.47

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Solution

The fourth proportional to 5,142.66, 7,097.17 and 2,904.47 is: 4,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.66 : 7,097.17 = 2,904.47 : x
  2. Step 2: Convert to fraction form
    5,142.66/7,097.17 = 2,904.47/x
  3. Step 3: Cross multiply
    5,142.66x = 7,097.17 × 2,904.47
  4. Step 4: Simplify right side
    5,142.66x = 20,613,546.58
  5. Step 5: Solve for x
    x = 20,613,546.58/5,142.66
  6. Step 6: Final answer
    x = 4,008.35

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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.