Home / 2,879.18-4,317.82-1,123.74

Finding the Fourth Proportional to 2,879.18, 4,317.82 and 1,123.74

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Solution

The fourth proportional to 2,879.18, 4,317.82 and 1,123.74 is: 1,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.18 : 4,317.82 = 1,123.74 : x
  2. Step 2: Convert to fraction form
    2,879.18/4,317.82 = 1,123.74/x
  3. Step 3: Cross multiply
    2,879.18x = 4,317.82 × 1,123.74
  4. Step 4: Simplify right side
    2,879.18x = 4,852,079.84
  5. Step 5: Solve for x
    x = 4,852,079.84/2,879.18
  6. Step 6: Final answer
    x = 1,685.23

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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.