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Finding the Fourth Proportional to 2,773.68, 4,160.76 and 1,130.34

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Solution

The fourth proportional to 2,773.68, 4,160.76 and 1,130.34 is: 1,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.68 : 4,160.76 = 1,130.34 : x
  2. Step 2: Convert to fraction form
    2,773.68/4,160.76 = 1,130.34/x
  3. Step 3: Cross multiply
    2,773.68x = 4,160.76 × 1,130.34
  4. Step 4: Simplify right side
    2,773.68x = 4,703,073.46
  5. Step 5: Solve for x
    x = 4,703,073.46/2,773.68
  6. Step 6: Final answer
    x = 1,695.61

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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.