Home / 2,447.19-3,377.13-1,328.15

Finding the Fourth Proportional to 2,447.19, 3,377.13 and 1,328.15

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Solution

The fourth proportional to 2,447.19, 3,377.13 and 1,328.15 is: 1,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.19 : 3,377.13 = 1,328.15 : x
  2. Step 2: Convert to fraction form
    2,447.19/3,377.13 = 1,328.15/x
  3. Step 3: Cross multiply
    2,447.19x = 3,377.13 × 1,328.15
  4. Step 4: Simplify right side
    2,447.19x = 4,485,335.21
  5. Step 5: Solve for x
    x = 4,485,335.21/2,447.19
  6. Step 6: Final answer
    x = 1,832.85

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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.