Home / 4,269.12-6,393.76-3,112

Finding the Fourth Proportional to 4,269.12, 6,393.76 and 3,112

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Solution

The fourth proportional to 4,269.12, 6,393.76 and 3,112 is: 4,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,269.12 : 6,393.76 = 3,112 : x
  2. Step 2: Convert to fraction form
    4,269.12/6,393.76 = 3,112/x
  3. Step 3: Cross multiply
    4,269.12x = 6,393.76 × 3,112
  4. Step 4: Simplify right side
    4,269.12x = 19,897,381.12
  5. Step 5: Solve for x
    x = 19,897,381.12/4,269.12
  6. Step 6: Final answer
    x = 4,660.77

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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.