Home / 3,613.73-5,422.35-1,424.30

Finding the Fourth Proportional to 3,613.73, 5,422.35 and 1,424.30

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Solution

The fourth proportional to 3,613.73, 5,422.35 and 1,424.30 is: 2,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.73 : 5,422.35 = 1,424.30 : x
  2. Step 2: Convert to fraction form
    3,613.73/5,422.35 = 1,424.30/x
  3. Step 3: Cross multiply
    3,613.73x = 5,422.35 × 1,424.30
  4. Step 4: Simplify right side
    3,613.73x = 7,723,053.11
  5. Step 5: Solve for x
    x = 7,723,053.11/3,613.73
  6. Step 6: Final answer
    x = 2,137.14

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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.