Home / 5,411.08-8,116.60-1,515.48

Finding the Fourth Proportional to 5,411.08, 8,116.60 and 1,515.48

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Solution

The fourth proportional to 5,411.08, 8,116.60 and 1,515.48 is: 2,273.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.08 : 8,116.60 = 1,515.48 : x
  2. Step 2: Convert to fraction form
    5,411.08/8,116.60 = 1,515.48/x
  3. Step 3: Cross multiply
    5,411.08x = 8,116.60 × 1,515.48
  4. Step 4: Simplify right side
    5,411.08x = 12,300,544.97
  5. Step 5: Solve for x
    x = 12,300,544.97/5,411.08
  6. Step 6: Final answer
    x = 2,273.21

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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.