Home / 5,515.38-8,271.02-1,816.53

Finding the Fourth Proportional to 5,515.38, 8,271.02 and 1,816.53

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Solution

The fourth proportional to 5,515.38, 8,271.02 and 1,816.53 is: 2,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.38 : 8,271.02 = 1,816.53 : x
  2. Step 2: Convert to fraction form
    5,515.38/8,271.02 = 1,816.53/x
  3. Step 3: Cross multiply
    5,515.38x = 8,271.02 × 1,816.53
  4. Step 4: Simplify right side
    5,515.38x = 15,024,555.96
  5. Step 5: Solve for x
    x = 15,024,555.96/5,515.38
  6. Step 6: Final answer
    x = 2,724.12

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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.