Home / 5,519.89-7,616.14-3,730.70

Finding the Fourth Proportional to 5,519.89, 7,616.14 and 3,730.70

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Solution

The fourth proportional to 5,519.89, 7,616.14 and 3,730.70 is: 5,147.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.89 : 7,616.14 = 3,730.70 : x
  2. Step 2: Convert to fraction form
    5,519.89/7,616.14 = 3,730.70/x
  3. Step 3: Cross multiply
    5,519.89x = 7,616.14 × 3,730.70
  4. Step 4: Simplify right side
    5,519.89x = 28,413,495.42
  5. Step 5: Solve for x
    x = 28,413,495.42/5,519.89
  6. Step 6: Final answer
    x = 5,147.48

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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.