Home / 3,423.12-5,135.76-1,476.24

Finding the Fourth Proportional to 3,423.12, 5,135.76 and 1,476.24

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Solution

The fourth proportional to 3,423.12, 5,135.76 and 1,476.24 is: 2,214.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.12 : 5,135.76 = 1,476.24 : x
  2. Step 2: Convert to fraction form
    3,423.12/5,135.76 = 1,476.24/x
  3. Step 3: Cross multiply
    3,423.12x = 5,135.76 × 1,476.24
  4. Step 4: Simplify right side
    3,423.12x = 7,581,614.34
  5. Step 5: Solve for x
    x = 7,581,614.34/3,423.12
  6. Step 6: Final answer
    x = 2,214.83

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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.