Home / 5,377.59-7,421.54-2,988.02

Finding the Fourth Proportional to 5,377.59, 7,421.54 and 2,988.02

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Solution

The fourth proportional to 5,377.59, 7,421.54 and 2,988.02 is: 4,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.59 : 7,421.54 = 2,988.02 : x
  2. Step 2: Convert to fraction form
    5,377.59/7,421.54 = 2,988.02/x
  3. Step 3: Cross multiply
    5,377.59x = 7,421.54 × 2,988.02
  4. Step 4: Simplify right side
    5,377.59x = 22,175,657.90
  5. Step 5: Solve for x
    x = 22,175,657.90/5,377.59
  6. Step 6: Final answer
    x = 4,123.72

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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.