Home / 5,538.92-7,643.45-3,020.91

Finding the Fourth Proportional to 5,538.92, 7,643.45 and 3,020.91

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Solution

The fourth proportional to 5,538.92, 7,643.45 and 3,020.91 is: 4,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.92 : 7,643.45 = 3,020.91 : x
  2. Step 2: Convert to fraction form
    5,538.92/7,643.45 = 3,020.91/x
  3. Step 3: Cross multiply
    5,538.92x = 7,643.45 × 3,020.91
  4. Step 4: Simplify right side
    5,538.92x = 23,090,159.93
  5. Step 5: Solve for x
    x = 23,090,159.93/5,538.92
  6. Step 6: Final answer
    x = 4,168.71

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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.