Home / 4,129.14-6,189.30-1,937.28

Finding the Fourth Proportional to 4,129.14, 6,189.30 and 1,937.28

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Solution

The fourth proportional to 4,129.14, 6,189.30 and 1,937.28 is: 2,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.14 : 6,189.30 = 1,937.28 : x
  2. Step 2: Convert to fraction form
    4,129.14/6,189.30 = 1,937.28/x
  3. Step 3: Cross multiply
    4,129.14x = 6,189.30 × 1,937.28
  4. Step 4: Simplify right side
    4,129.14x = 11,990,407.10
  5. Step 5: Solve for x
    x = 11,990,407.10/4,129.14
  6. Step 6: Final answer
    x = 2,903.85

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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.