Home / 3,129.32-4,694.96-1,881.35

Finding the Fourth Proportional to 3,129.32, 4,694.96 and 1,881.35

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Solution

The fourth proportional to 3,129.32, 4,694.96 and 1,881.35 is: 2,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.32 : 4,694.96 = 1,881.35 : x
  2. Step 2: Convert to fraction form
    3,129.32/4,694.96 = 1,881.35/x
  3. Step 3: Cross multiply
    3,129.32x = 4,694.96 × 1,881.35
  4. Step 4: Simplify right side
    3,129.32x = 8,832,830.11
  5. Step 5: Solve for x
    x = 8,832,830.11/3,129.32
  6. Step 6: Final answer
    x = 2,822.61

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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.