Home / 3,614.96-5,423.76-1,425.20

Finding the Fourth Proportional to 3,614.96, 5,423.76 and 1,425.20

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Solution

The fourth proportional to 3,614.96, 5,423.76 and 1,425.20 is: 2,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.96 : 5,423.76 = 1,425.20 : x
  2. Step 2: Convert to fraction form
    3,614.96/5,423.76 = 1,425.20/x
  3. Step 3: Cross multiply
    3,614.96x = 5,423.76 × 1,425.20
  4. Step 4: Simplify right side
    3,614.96x = 7,729,915.63
  5. Step 5: Solve for x
    x = 7,729,915.63/3,614.96
  6. Step 6: Final answer
    x = 2,138.31

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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.