Home / 3,639.52-5,459.28-1,447.74

Finding the Fourth Proportional to 3,639.52, 5,459.28 and 1,447.74

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Solution

The fourth proportional to 3,639.52, 5,459.28 and 1,447.74 is: 2,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.52 : 5,459.28 = 1,447.74 : x
  2. Step 2: Convert to fraction form
    3,639.52/5,459.28 = 1,447.74/x
  3. Step 3: Cross multiply
    3,639.52x = 5,459.28 × 1,447.74
  4. Step 4: Simplify right side
    3,639.52x = 7,903,612.60
  5. Step 5: Solve for x
    x = 7,903,612.60/3,639.52
  6. Step 6: Final answer
    x = 2,171.61

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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.