Home / 4,889.60-7,320.24-3,136.64

Finding the Fourth Proportional to 4,889.60, 7,320.24 and 3,136.64

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Solution

The fourth proportional to 4,889.60, 7,320.24 and 3,136.64 is: 4,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.60 : 7,320.24 = 3,136.64 : x
  2. Step 2: Convert to fraction form
    4,889.60/7,320.24 = 3,136.64/x
  3. Step 3: Cross multiply
    4,889.60x = 7,320.24 × 3,136.64
  4. Step 4: Simplify right side
    4,889.60x = 22,960,957.59
  5. Step 5: Solve for x
    x = 22,960,957.59/4,889.60
  6. Step 6: Final answer
    x = 4,695.88

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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.