Home / 3,635.47-5,447.80-2,153.17

Finding the Fourth Proportional to 3,635.47, 5,447.80 and 2,153.17

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Solution

The fourth proportional to 3,635.47, 5,447.80 and 2,153.17 is: 3,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.47 : 5,447.80 = 2,153.17 : x
  2. Step 2: Convert to fraction form
    3,635.47/5,447.80 = 2,153.17/x
  3. Step 3: Cross multiply
    3,635.47x = 5,447.80 × 2,153.17
  4. Step 4: Simplify right side
    3,635.47x = 11,730,039.53
  5. Step 5: Solve for x
    x = 11,730,039.53/3,635.47
  6. Step 6: Final answer
    x = 3,226.55

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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.