Home / 2,282.14-3,149.10-1,287.58

Finding the Fourth Proportional to 2,282.14, 3,149.10 and 1,287.58

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Solution

The fourth proportional to 2,282.14, 3,149.10 and 1,287.58 is: 1,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.14 : 3,149.10 = 1,287.58 : x
  2. Step 2: Convert to fraction form
    2,282.14/3,149.10 = 1,287.58/x
  3. Step 3: Cross multiply
    2,282.14x = 3,149.10 × 1,287.58
  4. Step 4: Simplify right side
    2,282.14x = 4,054,718.18
  5. Step 5: Solve for x
    x = 4,054,718.18/2,282.14
  6. Step 6: Final answer
    x = 1,776.72

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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.