Home / 3,427.68-5,131.80-2,330.40

Finding the Fourth Proportional to 3,427.68, 5,131.80 and 2,330.40

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Solution

The fourth proportional to 3,427.68, 5,131.80 and 2,330.40 is: 3,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.68 : 5,131.80 = 2,330.40 : x
  2. Step 2: Convert to fraction form
    3,427.68/5,131.80 = 2,330.40/x
  3. Step 3: Cross multiply
    3,427.68x = 5,131.80 × 2,330.40
  4. Step 4: Simplify right side
    3,427.68x = 11,959,146.72
  5. Step 5: Solve for x
    x = 11,959,146.72/3,427.68
  6. Step 6: Final answer
    x = 3,488.99

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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.