Home / 3,423.60-5,127.84-2,876.76

Finding the Fourth Proportional to 3,423.60, 5,127.84 and 2,876.76

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Solution

The fourth proportional to 3,423.60, 5,127.84 and 2,876.76 is: 4,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.60 : 5,127.84 = 2,876.76 : x
  2. Step 2: Convert to fraction form
    3,423.60/5,127.84 = 2,876.76/x
  3. Step 3: Cross multiply
    3,423.60x = 5,127.84 × 2,876.76
  4. Step 4: Simplify right side
    3,423.60x = 14,751,565.00
  5. Step 5: Solve for x
    x = 14,751,565.00/3,423.60
  6. Step 6: Final answer
    x = 4,308.79

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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.