Home / 2,060.32-3,090.30-761.80

Finding the Fourth Proportional to 2,060.32, 3,090.30 and 761.80

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Solution

The fourth proportional to 2,060.32, 3,090.30 and 761.80 is: 1,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.32 : 3,090.30 = 761.80 : x
  2. Step 2: Convert to fraction form
    2,060.32/3,090.30 = 761.80/x
  3. Step 3: Cross multiply
    2,060.32x = 3,090.30 × 761.80
  4. Step 4: Simplify right side
    2,060.32x = 2,354,190.54
  5. Step 5: Solve for x
    x = 2,354,190.54/2,060.32
  6. Step 6: Final answer
    x = 1,142.63

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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.