Home / 4,129.20-6,187.32-2,175.48

Finding the Fourth Proportional to 4,129.20, 6,187.32 and 2,175.48

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Solution

The fourth proportional to 4,129.20, 6,187.32 and 2,175.48 is: 3,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.20 : 6,187.32 = 2,175.48 : x
  2. Step 2: Convert to fraction form
    4,129.20/6,187.32 = 2,175.48/x
  3. Step 3: Cross multiply
    4,129.20x = 6,187.32 × 2,175.48
  4. Step 4: Simplify right side
    4,129.20x = 13,460,390.91
  5. Step 5: Solve for x
    x = 13,460,390.91/4,129.20
  6. Step 6: Final answer
    x = 3,259.81

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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.