Home / 5,531.59-7,629.19-3,913.62

Finding the Fourth Proportional to 5,531.59, 7,629.19 and 3,913.62

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Solution

The fourth proportional to 5,531.59, 7,629.19 and 3,913.62 is: 5,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.59 : 7,629.19 = 3,913.62 : x
  2. Step 2: Convert to fraction form
    5,531.59/7,629.19 = 3,913.62/x
  3. Step 3: Cross multiply
    5,531.59x = 7,629.19 × 3,913.62
  4. Step 4: Simplify right side
    5,531.59x = 29,857,750.57
  5. Step 5: Solve for x
    x = 29,857,750.57/5,531.59
  6. Step 6: Final answer
    x = 5,397.68

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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.