Home / 3,152.10-4,728.15-1,511.85

Finding the Fourth Proportional to 3,152.10, 4,728.15 and 1,511.85

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Solution

The fourth proportional to 3,152.10, 4,728.15 and 1,511.85 is: 2,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.10 : 4,728.15 = 1,511.85 : x
  2. Step 2: Convert to fraction form
    3,152.10/4,728.15 = 1,511.85/x
  3. Step 3: Cross multiply
    3,152.10x = 4,728.15 × 1,511.85
  4. Step 4: Simplify right side
    3,152.10x = 7,148,253.58
  5. Step 5: Solve for x
    x = 7,148,253.58/3,152.10
  6. Step 6: Final answer
    x = 2,267.78

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Similar ratio
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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.