Home / 3,177.30-4,766.13-986.34

Finding the Fourth Proportional to 3,177.30, 4,766.13 and 986.34

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Solution

The fourth proportional to 3,177.30, 4,766.13 and 986.34 is: 1,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.30 : 4,766.13 = 986.34 : x
  2. Step 2: Convert to fraction form
    3,177.30/4,766.13 = 986.34/x
  3. Step 3: Cross multiply
    3,177.30x = 4,766.13 × 986.34
  4. Step 4: Simplify right side
    3,177.30x = 4,701,024.66
  5. Step 5: Solve for x
    x = 4,701,024.66/3,177.30
  6. Step 6: Final answer
    x = 1,479.57

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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.