Home / 5,538.52-7,643.22-3,020.61

Finding the Fourth Proportional to 5,538.52, 7,643.22 and 3,020.61

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Solution

The fourth proportional to 5,538.52, 7,643.22 and 3,020.61 is: 4,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.52 : 7,643.22 = 3,020.61 : x
  2. Step 2: Convert to fraction form
    5,538.52/7,643.22 = 3,020.61/x
  3. Step 3: Cross multiply
    5,538.52x = 7,643.22 × 3,020.61
  4. Step 4: Simplify right side
    5,538.52x = 23,087,201.10
  5. Step 5: Solve for x
    x = 23,087,201.10/5,538.52
  6. Step 6: Final answer
    x = 4,168.48

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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.