Home / 2,104.42-3,156.62-1,129.18

Finding the Fourth Proportional to 2,104.42, 3,156.62 and 1,129.18

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Solution

The fourth proportional to 2,104.42, 3,156.62 and 1,129.18 is: 1,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.42 : 3,156.62 = 1,129.18 : x
  2. Step 2: Convert to fraction form
    2,104.42/3,156.62 = 1,129.18/x
  3. Step 3: Cross multiply
    2,104.42x = 3,156.62 × 1,129.18
  4. Step 4: Simplify right side
    2,104.42x = 3,564,392.17
  5. Step 5: Solve for x
    x = 3,564,392.17/2,104.42
  6. Step 6: Final answer
    x = 1,693.76

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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.