Home / 3,639.67-5,459.86-1,447.92

Finding the Fourth Proportional to 3,639.67, 5,459.86 and 1,447.92

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Solution

The fourth proportional to 3,639.67, 5,459.86 and 1,447.92 is: 2,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.67 : 5,459.86 = 1,447.92 : x
  2. Step 2: Convert to fraction form
    3,639.67/5,459.86 = 1,447.92/x
  3. Step 3: Cross multiply
    3,639.67x = 5,459.86 × 1,447.92
  4. Step 4: Simplify right side
    3,639.67x = 7,905,409.57
  5. Step 5: Solve for x
    x = 7,905,409.57/3,639.67
  6. Step 6: Final answer
    x = 2,172.01

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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.