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Finding the Fourth Proportional to 1,339.52, 1,847.52 and 873.92

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Solution

The fourth proportional to 1,339.52, 1,847.52 and 873.92 is: 1,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.52 : 1,847.52 = 873.92 : x
  2. Step 2: Convert to fraction form
    1,339.52/1,847.52 = 873.92/x
  3. Step 3: Cross multiply
    1,339.52x = 1,847.52 × 873.92
  4. Step 4: Simplify right side
    1,339.52x = 1,614,584.68
  5. Step 5: Solve for x
    x = 1,614,584.68/1,339.52
  6. Step 6: Final answer
    x = 1,205.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.