Home / 2,282.48-3,149.60-1,287.64

Finding the Fourth Proportional to 2,282.48, 3,149.60 and 1,287.64

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Solution

The fourth proportional to 2,282.48, 3,149.60 and 1,287.64 is: 1,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.48 : 3,149.60 = 1,287.64 : x
  2. Step 2: Convert to fraction form
    2,282.48/3,149.60 = 1,287.64/x
  3. Step 3: Cross multiply
    2,282.48x = 3,149.60 × 1,287.64
  4. Step 4: Simplify right side
    2,282.48x = 4,055,550.94
  5. Step 5: Solve for x
    x = 4,055,550.94/2,282.48
  6. Step 6: Final answer
    x = 1,776.82

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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.