Home / 3,639.60-5,459.04-1,447.74

Finding the Fourth Proportional to 3,639.60, 5,459.04 and 1,447.74

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Solution

The fourth proportional to 3,639.60, 5,459.04 and 1,447.74 is: 2,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.60 : 5,459.04 = 1,447.74 : x
  2. Step 2: Convert to fraction form
    3,639.60/5,459.04 = 1,447.74/x
  3. Step 3: Cross multiply
    3,639.60x = 5,459.04 × 1,447.74
  4. Step 4: Simplify right side
    3,639.60x = 7,903,270.57
  5. Step 5: Solve for x
    x = 7,903,270.57/3,639.60
  6. Step 6: Final answer
    x = 2,171.47

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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.