Home / 5,538.19-7,642.67-3,020.29

Finding the Fourth Proportional to 5,538.19, 7,642.67 and 3,020.29

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Solution

The fourth proportional to 5,538.19, 7,642.67 and 3,020.29 is: 4,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.19 : 7,642.67 = 3,020.29 : x
  2. Step 2: Convert to fraction form
    5,538.19/7,642.67 = 3,020.29/x
  3. Step 3: Cross multiply
    5,538.19x = 7,642.67 × 3,020.29
  4. Step 4: Simplify right side
    5,538.19x = 23,083,105.55
  5. Step 5: Solve for x
    x = 23,083,105.55/5,538.19
  6. Step 6: Final answer
    x = 4,167.99

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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.