Home / 5,515.20-8,272.80-2,436.48

Finding the Fourth Proportional to 5,515.20, 8,272.80 and 2,436.48

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Solution

The fourth proportional to 5,515.20, 8,272.80 and 2,436.48 is: 3,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.20 : 8,272.80 = 2,436.48 : x
  2. Step 2: Convert to fraction form
    5,515.20/8,272.80 = 2,436.48/x
  3. Step 3: Cross multiply
    5,515.20x = 8,272.80 × 2,436.48
  4. Step 4: Simplify right side
    5,515.20x = 20,156,511.74
  5. Step 5: Solve for x
    x = 20,156,511.74/5,515.20
  6. Step 6: Final answer
    x = 3,654.72

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1.5x scale

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.