Home / 2,371.30-3,272.50-1,309.20

Finding the Fourth Proportional to 2,371.30, 3,272.50 and 1,309.20

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Solution

The fourth proportional to 2,371.30, 3,272.50 and 1,309.20 is: 1,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.30 : 3,272.50 = 1,309.20 : x
  2. Step 2: Convert to fraction form
    2,371.30/3,272.50 = 1,309.20/x
  3. Step 3: Cross multiply
    2,371.30x = 3,272.50 × 1,309.20
  4. Step 4: Simplify right side
    2,371.30x = 4,284,357
  5. Step 5: Solve for x
    x = 4,284,357/2,371.30
  6. Step 6: Final answer
    x = 1,806.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.