Home / 5,611.16-8,418.56-2,689.70

Finding the Fourth Proportional to 5,611.16, 8,418.56 and 2,689.70

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Solution

The fourth proportional to 5,611.16, 8,418.56 and 2,689.70 is: 4,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.16 : 8,418.56 = 2,689.70 : x
  2. Step 2: Convert to fraction form
    5,611.16/8,418.56 = 2,689.70/x
  3. Step 3: Cross multiply
    5,611.16x = 8,418.56 × 2,689.70
  4. Step 4: Simplify right side
    5,611.16x = 22,643,345.29
  5. Step 5: Solve for x
    x = 22,643,345.29/5,611.16
  6. Step 6: Final answer
    x = 4,035.42

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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.