Home / 5,387.87-8,042.32-4,992.10

Finding the Fourth Proportional to 5,387.87, 8,042.32 and 4,992.10

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Solution

The fourth proportional to 5,387.87, 8,042.32 and 4,992.10 is: 7,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.87 : 8,042.32 = 4,992.10 : x
  2. Step 2: Convert to fraction form
    5,387.87/8,042.32 = 4,992.10/x
  3. Step 3: Cross multiply
    5,387.87x = 8,042.32 × 4,992.10
  4. Step 4: Simplify right side
    5,387.87x = 40,148,000.50
  5. Step 5: Solve for x
    x = 40,148,000.50/5,387.87
  6. Step 6: Final answer
    x = 7,451.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.