Home / 2,277.60-3,142.89-1,282.79

Finding the Fourth Proportional to 2,277.60, 3,142.89 and 1,282.79

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Solution

The fourth proportional to 2,277.60, 3,142.89 and 1,282.79 is: 1,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.60 : 3,142.89 = 1,282.79 : x
  2. Step 2: Convert to fraction form
    2,277.60/3,142.89 = 1,282.79/x
  3. Step 3: Cross multiply
    2,277.60x = 3,142.89 × 1,282.79
  4. Step 4: Simplify right side
    2,277.60x = 4,031,652.15
  5. Step 5: Solve for x
    x = 4,031,652.15/2,277.60
  6. Step 6: Final answer
    x = 1,770.13

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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.