Home / 5,008.61-6,909.55-3,240.78

Finding the Fourth Proportional to 5,008.61, 6,909.55 and 3,240.78

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Solution

The fourth proportional to 5,008.61, 6,909.55 and 3,240.78 is: 4,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.61 : 6,909.55 = 3,240.78 : x
  2. Step 2: Convert to fraction form
    5,008.61/6,909.55 = 3,240.78/x
  3. Step 3: Cross multiply
    5,008.61x = 6,909.55 × 3,240.78
  4. Step 4: Simplify right side
    5,008.61x = 22,392,323.35
  5. Step 5: Solve for x
    x = 22,392,323.35/5,008.61
  6. Step 6: Final answer
    x = 4,470.77

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1.5x scale

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.