Home / 2,264.80-3,115.92-2,135.20

Finding the Fourth Proportional to 2,264.80, 3,115.92 and 2,135.20

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Solution

The fourth proportional to 2,264.80, 3,115.92 and 2,135.20 is: 2,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.80 : 3,115.92 = 2,135.20 : x
  2. Step 2: Convert to fraction form
    2,264.80/3,115.92 = 2,135.20/x
  3. Step 3: Cross multiply
    2,264.80x = 3,115.92 × 2,135.20
  4. Step 4: Simplify right side
    2,264.80x = 6,653,112.38
  5. Step 5: Solve for x
    x = 6,653,112.38/2,264.80
  6. Step 6: Final answer
    x = 2,937.62

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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.