Home / 2,270.79-3,133.57-1,276.11

Finding the Fourth Proportional to 2,270.79, 3,133.57 and 1,276.11

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Solution

The fourth proportional to 2,270.79, 3,133.57 and 1,276.11 is: 1,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.79 : 3,133.57 = 1,276.11 : x
  2. Step 2: Convert to fraction form
    2,270.79/3,133.57 = 1,276.11/x
  3. Step 3: Cross multiply
    2,270.79x = 3,133.57 × 1,276.11
  4. Step 4: Simplify right side
    2,270.79x = 3,998,780.01
  5. Step 5: Solve for x
    x = 3,998,780.01/2,270.79
  6. Step 6: Final answer
    x = 1,760.96

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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.