Home / 8,040.40-12,062.70-3,110.20

Finding the Fourth Proportional to 8,040.40, 12,062.70 and 3,110.20

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Solution

The fourth proportional to 8,040.40, 12,062.70 and 3,110.20 is: 4,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.40 : 12,062.70 = 3,110.20 : x
  2. Step 2: Convert to fraction form
    8,040.40/12,062.70 = 3,110.20/x
  3. Step 3: Cross multiply
    8,040.40x = 12,062.70 × 3,110.20
  4. Step 4: Simplify right side
    8,040.40x = 37,517,409.54
  5. Step 5: Solve for x
    x = 37,517,409.54/8,040.40
  6. Step 6: Final answer
    x = 4,666.11

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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.