Home / 5,538.74-7,643.92-3,149.46

Finding the Fourth Proportional to 5,538.74, 7,643.92 and 3,149.46

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Solution

The fourth proportional to 5,538.74, 7,643.92 and 3,149.46 is: 4,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.74 : 7,643.92 = 3,149.46 : x
  2. Step 2: Convert to fraction form
    5,538.74/7,643.92 = 3,149.46/x
  3. Step 3: Cross multiply
    5,538.74x = 7,643.92 × 3,149.46
  4. Step 4: Simplify right side
    5,538.74x = 24,074,231.52
  5. Step 5: Solve for x
    x = 24,074,231.52/5,538.74
  6. Step 6: Final answer
    x = 4,346.52

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1.5x scale

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.