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Finding the Fourth Proportional to 2,939.52, 4,409.52 and 1,477.92

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Solution

The fourth proportional to 2,939.52, 4,409.52 and 1,477.92 is: 2,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.52 : 4,409.52 = 1,477.92 : x
  2. Step 2: Convert to fraction form
    2,939.52/4,409.52 = 1,477.92/x
  3. Step 3: Cross multiply
    2,939.52x = 4,409.52 × 1,477.92
  4. Step 4: Simplify right side
    2,939.52x = 6,516,917.80
  5. Step 5: Solve for x
    x = 6,516,917.80/2,939.52
  6. Step 6: Final answer
    x = 2,217.00

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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.