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Finding the Fourth Proportional to 4,449.92, 6,671.28 and 1,854.80

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Solution

The fourth proportional to 4,449.92, 6,671.28 and 1,854.80 is: 2,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.92 : 6,671.28 = 1,854.80 : x
  2. Step 2: Convert to fraction form
    4,449.92/6,671.28 = 1,854.80/x
  3. Step 3: Cross multiply
    4,449.92x = 6,671.28 × 1,854.80
  4. Step 4: Simplify right side
    4,449.92x = 12,373,890.14
  5. Step 5: Solve for x
    x = 12,373,890.14/4,449.92
  6. Step 6: Final answer
    x = 2,780.70

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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.