Home / 3,056.20-4,584.28-747.70

Finding the Fourth Proportional to 3,056.20, 4,584.28 and 747.70

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Solution

The fourth proportional to 3,056.20, 4,584.28 and 747.70 is: 1,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.20 : 4,584.28 = 747.70 : x
  2. Step 2: Convert to fraction form
    3,056.20/4,584.28 = 747.70/x
  3. Step 3: Cross multiply
    3,056.20x = 4,584.28 × 747.70
  4. Step 4: Simplify right side
    3,056.20x = 3,427,666.16
  5. Step 5: Solve for x
    x = 3,427,666.16/3,056.20
  6. Step 6: Final answer
    x = 1,121.55

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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.