Home / 3,686.25-5,529.38-1,089.12

Finding the Fourth Proportional to 3,686.25, 5,529.38 and 1,089.12

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Solution

The fourth proportional to 3,686.25, 5,529.38 and 1,089.12 is: 1,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.25 : 5,529.38 = 1,089.12 : x
  2. Step 2: Convert to fraction form
    3,686.25/5,529.38 = 1,089.12/x
  3. Step 3: Cross multiply
    3,686.25x = 5,529.38 × 1,089.12
  4. Step 4: Simplify right side
    3,686.25x = 6,022,152.90
  5. Step 5: Solve for x
    x = 6,022,152.90/3,686.25
  6. Step 6: Final answer
    x = 1,633.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.