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Finding the Fourth Proportional to 5,647.65, 8,458.95 and 3,565.91

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Solution

The fourth proportional to 5,647.65, 8,458.95 and 3,565.91 is: 5,340.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.65 : 8,458.95 = 3,565.91 : x
  2. Step 2: Convert to fraction form
    5,647.65/8,458.95 = 3,565.91/x
  3. Step 3: Cross multiply
    5,647.65x = 8,458.95 × 3,565.91
  4. Step 4: Simplify right side
    5,647.65x = 30,163,812.10
  5. Step 5: Solve for x
    x = 30,163,812.10/5,647.65
  6. Step 6: Final answer
    x = 5,340.95

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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.