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Finding the Fourth Proportional to 5,358.80, 8,059.80 and 4,797.20

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Solution

The fourth proportional to 5,358.80, 8,059.80 and 4,797.20 is: 7,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.80 : 8,059.80 = 4,797.20 : x
  2. Step 2: Convert to fraction form
    5,358.80/8,059.80 = 4,797.20/x
  3. Step 3: Cross multiply
    5,358.80x = 8,059.80 × 4,797.20
  4. Step 4: Simplify right side
    5,358.80x = 38,664,472.56
  5. Step 5: Solve for x
    x = 38,664,472.56/5,358.80
  6. Step 6: Final answer
    x = 7,215.14

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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.