Home / 5,154.18-7,730.94-2,520.66

Finding the Fourth Proportional to 5,154.18, 7,730.94 and 2,520.66

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Solution

The fourth proportional to 5,154.18, 7,730.94 and 2,520.66 is: 3,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.18 : 7,730.94 = 2,520.66 : x
  2. Step 2: Convert to fraction form
    5,154.18/7,730.94 = 2,520.66/x
  3. Step 3: Cross multiply
    5,154.18x = 7,730.94 × 2,520.66
  4. Step 4: Simplify right side
    5,154.18x = 19,487,071.22
  5. Step 5: Solve for x
    x = 19,487,071.22/5,154.18
  6. Step 6: Final answer
    x = 3,780.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.