Home / 2,869.76-4,305.27-1,138.34

Finding the Fourth Proportional to 2,869.76, 4,305.27 and 1,138.34

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Solution

The fourth proportional to 2,869.76, 4,305.27 and 1,138.34 is: 1,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.76 : 4,305.27 = 1,138.34 : x
  2. Step 2: Convert to fraction form
    2,869.76/4,305.27 = 1,138.34/x
  3. Step 3: Cross multiply
    2,869.76x = 4,305.27 × 1,138.34
  4. Step 4: Simplify right side
    2,869.76x = 4,900,861.05
  5. Step 5: Solve for x
    x = 4,900,861.05/2,869.76
  6. Step 6: Final answer
    x = 1,707.76

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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.