Home / 3,129.03-4,691.79-1,047.96

Finding the Fourth Proportional to 3,129.03, 4,691.79 and 1,047.96

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Solution

The fourth proportional to 3,129.03, 4,691.79 and 1,047.96 is: 1,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.03 : 4,691.79 = 1,047.96 : x
  2. Step 2: Convert to fraction form
    3,129.03/4,691.79 = 1,047.96/x
  3. Step 3: Cross multiply
    3,129.03x = 4,691.79 × 1,047.96
  4. Step 4: Simplify right side
    3,129.03x = 4,916,808.25
  5. Step 5: Solve for x
    x = 4,916,808.25/3,129.03
  6. Step 6: Final answer
    x = 1,571.35

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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.