Home / 4,278.39-5,890.45-3,726.15

Finding the Fourth Proportional to 4,278.39, 5,890.45 and 3,726.15

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Solution

The fourth proportional to 4,278.39, 5,890.45 and 3,726.15 is: 5,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.39 : 5,890.45 = 3,726.15 : x
  2. Step 2: Convert to fraction form
    4,278.39/5,890.45 = 3,726.15/x
  3. Step 3: Cross multiply
    4,278.39x = 5,890.45 × 3,726.15
  4. Step 4: Simplify right side
    4,278.39x = 21,948,700.27
  5. Step 5: Solve for x
    x = 21,948,700.27/4,278.39
  6. Step 6: Final answer
    x = 5,130.13

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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.