Home / 2,340.12-3,229.40-1,277.88

Finding the Fourth Proportional to 2,340.12, 3,229.40 and 1,277.88

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Solution

The fourth proportional to 2,340.12, 3,229.40 and 1,277.88 is: 1,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.12 : 3,229.40 = 1,277.88 : x
  2. Step 2: Convert to fraction form
    2,340.12/3,229.40 = 1,277.88/x
  3. Step 3: Cross multiply
    2,340.12x = 3,229.40 × 1,277.88
  4. Step 4: Simplify right side
    2,340.12x = 4,126,776.76
  5. Step 5: Solve for x
    x = 4,126,776.76/2,340.12
  6. Step 6: Final answer
    x = 1,763.49

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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.