Home / 5,538.19-7,642.51-3,020.28

Finding the Fourth Proportional to 5,538.19, 7,642.51 and 3,020.28

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Solution

The fourth proportional to 5,538.19, 7,642.51 and 3,020.28 is: 4,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.19 : 7,642.51 = 3,020.28 : x
  2. Step 2: Convert to fraction form
    5,538.19/7,642.51 = 3,020.28/x
  3. Step 3: Cross multiply
    5,538.19x = 7,642.51 × 3,020.28
  4. Step 4: Simplify right side
    5,538.19x = 23,082,520.10
  5. Step 5: Solve for x
    x = 23,082,520.10/5,538.19
  6. Step 6: Final answer
    x = 4,167.88

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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.