Home / 4,742.52-7,113.24-1,280.04

Finding the Fourth Proportional to 4,742.52, 7,113.24 and 1,280.04

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Solution

The fourth proportional to 4,742.52, 7,113.24 and 1,280.04 is: 1,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.52 : 7,113.24 = 1,280.04 : x
  2. Step 2: Convert to fraction form
    4,742.52/7,113.24 = 1,280.04/x
  3. Step 3: Cross multiply
    4,742.52x = 7,113.24 × 1,280.04
  4. Step 4: Simplify right side
    4,742.52x = 9,105,231.73
  5. Step 5: Solve for x
    x = 9,105,231.73/4,742.52
  6. Step 6: Final answer
    x = 1,919.91

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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.