Home / 5,815.04-8,724.87-2,117.52

Finding the Fourth Proportional to 5,815.04, 8,724.87 and 2,117.52

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Solution

The fourth proportional to 5,815.04, 8,724.87 and 2,117.52 is: 3,177.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.04 : 8,724.87 = 2,117.52 : x
  2. Step 2: Convert to fraction form
    5,815.04/8,724.87 = 2,117.52/x
  3. Step 3: Cross multiply
    5,815.04x = 8,724.87 × 2,117.52
  4. Step 4: Simplify right side
    5,815.04x = 18,475,086.72
  5. Step 5: Solve for x
    x = 18,475,086.72/5,815.04
  6. Step 6: Final answer
    x = 3,177.12

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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.