Home / 5,538.11-7,642.42-3,020.25

Finding the Fourth Proportional to 5,538.11, 7,642.42 and 3,020.25

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Solution

The fourth proportional to 5,538.11, 7,642.42 and 3,020.25 is: 4,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.11 : 7,642.42 = 3,020.25 : x
  2. Step 2: Convert to fraction form
    5,538.11/7,642.42 = 3,020.25/x
  3. Step 3: Cross multiply
    5,538.11x = 7,642.42 × 3,020.25
  4. Step 4: Simplify right side
    5,538.11x = 23,082,040.11
  5. Step 5: Solve for x
    x = 23,082,040.11/5,538.11
  6. Step 6: Final answer
    x = 4,167.86

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Half scale
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Double scale
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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.