Home / 2,288.59-3,158.26-1,240.66

Finding the Fourth Proportional to 2,288.59, 3,158.26 and 1,240.66

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Solution

The fourth proportional to 2,288.59, 3,158.26 and 1,240.66 is: 1,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.59 : 3,158.26 = 1,240.66 : x
  2. Step 2: Convert to fraction form
    2,288.59/3,158.26 = 1,240.66/x
  3. Step 3: Cross multiply
    2,288.59x = 3,158.26 × 1,240.66
  4. Step 4: Simplify right side
    2,288.59x = 3,918,326.85
  5. Step 5: Solve for x
    x = 3,918,326.85/2,288.59
  6. Step 6: Final answer
    x = 1,712.11

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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.