Home / 2,271.79-3,134.18-1,276.84

Finding the Fourth Proportional to 2,271.79, 3,134.18 and 1,276.84

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Solution

The fourth proportional to 2,271.79, 3,134.18 and 1,276.84 is: 1,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.79 : 3,134.18 = 1,276.84 : x
  2. Step 2: Convert to fraction form
    2,271.79/3,134.18 = 1,276.84/x
  3. Step 3: Cross multiply
    2,271.79x = 3,134.18 × 1,276.84
  4. Step 4: Simplify right side
    2,271.79x = 4,001,824.34
  5. Step 5: Solve for x
    x = 4,001,824.34/2,271.79
  6. Step 6: Final answer
    x = 1,761.53

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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.