Home / 2,239.11-3,091.49-1,356.45

Finding the Fourth Proportional to 2,239.11, 3,091.49 and 1,356.45

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Solution

The fourth proportional to 2,239.11, 3,091.49 and 1,356.45 is: 1,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.11 : 3,091.49 = 1,356.45 : x
  2. Step 2: Convert to fraction form
    2,239.11/3,091.49 = 1,356.45/x
  3. Step 3: Cross multiply
    2,239.11x = 3,091.49 × 1,356.45
  4. Step 4: Simplify right side
    2,239.11x = 4,193,451.61
  5. Step 5: Solve for x
    x = 4,193,451.61/2,239.11
  6. Step 6: Final answer
    x = 1,872.82

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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.