Home / 2,271.48-3,134.66-1,276.68

Finding the Fourth Proportional to 2,271.48, 3,134.66 and 1,276.68

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Solution

The fourth proportional to 2,271.48, 3,134.66 and 1,276.68 is: 1,761.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.48 : 3,134.66 = 1,276.68 : x
  2. Step 2: Convert to fraction form
    2,271.48/3,134.66 = 1,276.68/x
  3. Step 3: Cross multiply
    2,271.48x = 3,134.66 × 1,276.68
  4. Step 4: Simplify right side
    2,271.48x = 4,001,957.73
  5. Step 5: Solve for x
    x = 4,001,957.73/2,271.48
  6. Step 6: Final answer
    x = 1,761.83

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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.