Home / 3,014.38-4,152.12-2,128.62

Finding the Fourth Proportional to 3,014.38, 4,152.12 and 2,128.62

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Solution

The fourth proportional to 3,014.38, 4,152.12 and 2,128.62 is: 2,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.38 : 4,152.12 = 2,128.62 : x
  2. Step 2: Convert to fraction form
    3,014.38/4,152.12 = 2,128.62/x
  3. Step 3: Cross multiply
    3,014.38x = 4,152.12 × 2,128.62
  4. Step 4: Simplify right side
    3,014.38x = 8,838,285.67
  5. Step 5: Solve for x
    x = 8,838,285.67/3,014.38
  6. Step 6: Final answer
    x = 2,932.04

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Half scale
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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.