Home / 5,490.11-7,568.43-3,915.47

Finding the Fourth Proportional to 5,490.11, 7,568.43 and 3,915.47

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Solution

The fourth proportional to 5,490.11, 7,568.43 and 3,915.47 is: 5,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.11 : 7,568.43 = 3,915.47 : x
  2. Step 2: Convert to fraction form
    5,490.11/7,568.43 = 3,915.47/x
  3. Step 3: Cross multiply
    5,490.11x = 7,568.43 × 3,915.47
  4. Step 4: Simplify right side
    5,490.11x = 29,633,922.77
  5. Step 5: Solve for x
    x = 29,633,922.77/5,490.11
  6. Step 6: Final answer
    x = 5,397.70

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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.