Home / 5,239.38-7,230.36-2,881.69

Finding the Fourth Proportional to 5,239.38, 7,230.36 and 2,881.69

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Solution

The fourth proportional to 5,239.38, 7,230.36 and 2,881.69 is: 3,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.38 : 7,230.36 = 2,881.69 : x
  2. Step 2: Convert to fraction form
    5,239.38/7,230.36 = 2,881.69/x
  3. Step 3: Cross multiply
    5,239.38x = 7,230.36 × 2,881.69
  4. Step 4: Simplify right side
    5,239.38x = 20,835,656.11
  5. Step 5: Solve for x
    x = 20,835,656.11/5,239.38
  6. Step 6: Final answer
    x = 3,976.74

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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.