Home / 3,720.46-5,134.19-2,148.52

Finding the Fourth Proportional to 3,720.46, 5,134.19 and 2,148.52

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Solution

The fourth proportional to 3,720.46, 5,134.19 and 2,148.52 is: 2,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.46 : 5,134.19 = 2,148.52 : x
  2. Step 2: Convert to fraction form
    3,720.46/5,134.19 = 2,148.52/x
  3. Step 3: Cross multiply
    3,720.46x = 5,134.19 × 2,148.52
  4. Step 4: Simplify right side
    3,720.46x = 11,030,909.90
  5. Step 5: Solve for x
    x = 11,030,909.90/3,720.46
  6. Step 6: Final answer
    x = 2,964.93

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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.