Home / 5,480.68-7,562.28-3,122.76

Finding the Fourth Proportional to 5,480.68, 7,562.28 and 3,122.76

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Solution

The fourth proportional to 5,480.68, 7,562.28 and 3,122.76 is: 4,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.68 : 7,562.28 = 3,122.76 : x
  2. Step 2: Convert to fraction form
    5,480.68/7,562.28 = 3,122.76/x
  3. Step 3: Cross multiply
    5,480.68x = 7,562.28 × 3,122.76
  4. Step 4: Simplify right side
    5,480.68x = 23,615,185.49
  5. Step 5: Solve for x
    x = 23,615,185.49/5,480.68
  6. Step 6: Final answer
    x = 4,308.81

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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.