Home / 5,516.10-8,266.05-4,689.90

Finding the Fourth Proportional to 5,516.10, 8,266.05 and 4,689.90

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Solution

The fourth proportional to 5,516.10, 8,266.05 and 4,689.90 is: 7,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.10 : 8,266.05 = 4,689.90 : x
  2. Step 2: Convert to fraction form
    5,516.10/8,266.05 = 4,689.90/x
  3. Step 3: Cross multiply
    5,516.10x = 8,266.05 × 4,689.90
  4. Step 4: Simplify right side
    5,516.10x = 38,766,947.90
  5. Step 5: Solve for x
    x = 38,766,947.90/5,516.10
  6. Step 6: Final answer
    x = 7,027.96

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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.