Home / 3,720.42-5,134.41-2,459.29

Finding the Fourth Proportional to 3,720.42, 5,134.41 and 2,459.29

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Solution

The fourth proportional to 3,720.42, 5,134.41 and 2,459.29 is: 3,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.42 : 5,134.41 = 2,459.29 : x
  2. Step 2: Convert to fraction form
    3,720.42/5,134.41 = 2,459.29/x
  3. Step 3: Cross multiply
    3,720.42x = 5,134.41 × 2,459.29
  4. Step 4: Simplify right side
    3,720.42x = 12,626,965.20
  5. Step 5: Solve for x
    x = 12,626,965.20/3,720.42
  6. Step 6: Final answer
    x = 3,393.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.