Home / 5,520.45-7,616.93-3,731.21

Finding the Fourth Proportional to 5,520.45, 7,616.93 and 3,731.21

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Solution

The fourth proportional to 5,520.45, 7,616.93 and 3,731.21 is: 5,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.45 : 7,616.93 = 3,731.21 : x
  2. Step 2: Convert to fraction form
    5,520.45/7,616.93 = 3,731.21/x
  3. Step 3: Cross multiply
    5,520.45x = 7,616.93 × 3,731.21
  4. Step 4: Simplify right side
    5,520.45x = 28,420,365.77
  5. Step 5: Solve for x
    x = 28,420,365.77/5,520.45
  6. Step 6: Final answer
    x = 5,148.20

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1.5x scale

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.