Home / 6,180.42-9,264.48-3,990.72

Finding the Fourth Proportional to 6,180.42, 9,264.48 and 3,990.72

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Solution

The fourth proportional to 6,180.42, 9,264.48 and 3,990.72 is: 5,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,180.42 : 9,264.48 = 3,990.72 : x
  2. Step 2: Convert to fraction form
    6,180.42/9,264.48 = 3,990.72/x
  3. Step 3: Cross multiply
    6,180.42x = 9,264.48 × 3,990.72
  4. Step 4: Simplify right side
    6,180.42x = 36,971,945.63
  5. Step 5: Solve for x
    x = 36,971,945.63/6,180.42
  6. Step 6: Final answer
    x = 5,982.11

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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.