Home / 3,423.66-5,129.40-1,231.02

Finding the Fourth Proportional to 3,423.66, 5,129.40 and 1,231.02

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Solution

The fourth proportional to 3,423.66, 5,129.40 and 1,231.02 is: 1,844.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.66 : 5,129.40 = 1,231.02 : x
  2. Step 2: Convert to fraction form
    3,423.66/5,129.40 = 1,231.02/x
  3. Step 3: Cross multiply
    3,423.66x = 5,129.40 × 1,231.02
  4. Step 4: Simplify right side
    3,423.66x = 6,314,393.99
  5. Step 5: Solve for x
    x = 6,314,393.99/3,423.66
  6. Step 6: Final answer
    x = 1,844.34

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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.