Home / 5,520.66-7,618.40-3,002.72

Finding the Fourth Proportional to 5,520.66, 7,618.40 and 3,002.72

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Solution

The fourth proportional to 5,520.66, 7,618.40 and 3,002.72 is: 4,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.66 : 7,618.40 = 3,002.72 : x
  2. Step 2: Convert to fraction form
    5,520.66/7,618.40 = 3,002.72/x
  3. Step 3: Cross multiply
    5,520.66x = 7,618.40 × 3,002.72
  4. Step 4: Simplify right side
    5,520.66x = 22,875,868.94
  5. Step 5: Solve for x
    x = 22,875,868.94/5,520.66
  6. Step 6: Final answer
    x = 4,143.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.