Home / 5,611.53-8,418.18-2,689.83

Finding the Fourth Proportional to 5,611.53, 8,418.18 and 2,689.83

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Solution

The fourth proportional to 5,611.53, 8,418.18 and 2,689.83 is: 4,035.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.53 : 8,418.18 = 2,689.83 : x
  2. Step 2: Convert to fraction form
    5,611.53/8,418.18 = 2,689.83/x
  3. Step 3: Cross multiply
    5,611.53x = 8,418.18 × 2,689.83
  4. Step 4: Simplify right side
    5,611.53x = 22,643,473.11
  5. Step 5: Solve for x
    x = 22,643,473.11/5,611.53
  6. Step 6: Final answer
    x = 4,035.17

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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.