Home / 2,060.31-3,091.14-761.88

Finding the Fourth Proportional to 2,060.31, 3,091.14 and 761.88

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Solution

The fourth proportional to 2,060.31, 3,091.14 and 761.88 is: 1,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.31 : 3,091.14 = 761.88 : x
  2. Step 2: Convert to fraction form
    2,060.31/3,091.14 = 761.88/x
  3. Step 3: Cross multiply
    2,060.31x = 3,091.14 × 761.88
  4. Step 4: Simplify right side
    2,060.31x = 2,355,077.74
  5. Step 5: Solve for x
    x = 2,355,077.74/2,060.31
  6. Step 6: Final answer
    x = 1,143.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.