Home / 3,423.92-5,134.80-1,693.76

Finding the Fourth Proportional to 3,423.92, 5,134.80 and 1,693.76

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Solution

The fourth proportional to 3,423.92, 5,134.80 and 1,693.76 is: 2,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.92 : 5,134.80 = 1,693.76 : x
  2. Step 2: Convert to fraction form
    3,423.92/5,134.80 = 1,693.76/x
  3. Step 3: Cross multiply
    3,423.92x = 5,134.80 × 1,693.76
  4. Step 4: Simplify right side
    3,423.92x = 8,697,118.85
  5. Step 5: Solve for x
    x = 8,697,118.85/3,423.92
  6. Step 6: Final answer
    x = 2,540.11

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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.