Home / 3,123.66-4,686.45-1,176.15

Finding the Fourth Proportional to 3,123.66, 4,686.45 and 1,176.15

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Solution

The fourth proportional to 3,123.66, 4,686.45 and 1,176.15 is: 1,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.66 : 4,686.45 = 1,176.15 : x
  2. Step 2: Convert to fraction form
    3,123.66/4,686.45 = 1,176.15/x
  3. Step 3: Cross multiply
    3,123.66x = 4,686.45 × 1,176.15
  4. Step 4: Simplify right side
    3,123.66x = 5,511,968.17
  5. Step 5: Solve for x
    x = 5,511,968.17/3,123.66
  6. Step 6: Final answer
    x = 1,764.59

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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.