Home / 2,879.04-4,318.96-1,123.72

Finding the Fourth Proportional to 2,879.04, 4,318.96 and 1,123.72

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Solution

The fourth proportional to 2,879.04, 4,318.96 and 1,123.72 is: 1,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.04 : 4,318.96 = 1,123.72 : x
  2. Step 2: Convert to fraction form
    2,879.04/4,318.96 = 1,123.72/x
  3. Step 3: Cross multiply
    2,879.04x = 4,318.96 × 1,123.72
  4. Step 4: Simplify right side
    2,879.04x = 4,853,301.73
  5. Step 5: Solve for x
    x = 4,853,301.73/2,879.04
  6. Step 6: Final answer
    x = 1,685.74

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1.5x scale

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.