Home / 3,614.31-5,420.85-1,423.66

Finding the Fourth Proportional to 3,614.31, 5,420.85 and 1,423.66

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Solution

The fourth proportional to 3,614.31, 5,420.85 and 1,423.66 is: 2,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.31 : 5,420.85 = 1,423.66 : x
  2. Step 2: Convert to fraction form
    3,614.31/5,420.85 = 1,423.66/x
  3. Step 3: Cross multiply
    3,614.31x = 5,420.85 × 1,423.66
  4. Step 4: Simplify right side
    3,614.31x = 7,717,447.31
  5. Step 5: Solve for x
    x = 7,717,447.31/3,614.31
  6. Step 6: Final answer
    x = 2,135.25

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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.