Home / 2,270.91-3,134.45-1,276.51

Finding the Fourth Proportional to 2,270.91, 3,134.45 and 1,276.51

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Solution

The fourth proportional to 2,270.91, 3,134.45 and 1,276.51 is: 1,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.91 : 3,134.45 = 1,276.51 : x
  2. Step 2: Convert to fraction form
    2,270.91/3,134.45 = 1,276.51/x
  3. Step 3: Cross multiply
    2,270.91x = 3,134.45 × 1,276.51
  4. Step 4: Simplify right side
    2,270.91x = 4,001,156.77
  5. Step 5: Solve for x
    x = 4,001,156.77/2,270.91
  6. Step 6: Final answer
    x = 1,761.92

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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.