Home / 2,281.23-3,144.74-1,965.11

Finding the Fourth Proportional to 2,281.23, 3,144.74 and 1,965.11

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Solution

The fourth proportional to 2,281.23, 3,144.74 and 1,965.11 is: 2,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.23 : 3,144.74 = 1,965.11 : x
  2. Step 2: Convert to fraction form
    2,281.23/3,144.74 = 1,965.11/x
  3. Step 3: Cross multiply
    2,281.23x = 3,144.74 × 1,965.11
  4. Step 4: Simplify right side
    2,281.23x = 6,179,734.47
  5. Step 5: Solve for x
    x = 6,179,734.47/2,281.23
  6. Step 6: Final answer
    x = 2,708.95

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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.