Home / 4,381.20-6,571.80-3,287.70

Finding the Fourth Proportional to 4,381.20, 6,571.80 and 3,287.70

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Solution

The fourth proportional to 4,381.20, 6,571.80 and 3,287.70 is: 4,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,381.20 : 6,571.80 = 3,287.70 : x
  2. Step 2: Convert to fraction form
    4,381.20/6,571.80 = 3,287.70/x
  3. Step 3: Cross multiply
    4,381.20x = 6,571.80 × 3,287.70
  4. Step 4: Simplify right side
    4,381.20x = 21,606,106.86
  5. Step 5: Solve for x
    x = 21,606,106.86/4,381.20
  6. Step 6: Final answer
    x = 4,931.55

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Similar ratio
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1.5x scale

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.