Home / 2,148.29-3,223.19-1,325.60

Finding the Fourth Proportional to 2,148.29, 3,223.19 and 1,325.60

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Solution

The fourth proportional to 2,148.29, 3,223.19 and 1,325.60 is: 1,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.29 : 3,223.19 = 1,325.60 : x
  2. Step 2: Convert to fraction form
    2,148.29/3,223.19 = 1,325.60/x
  3. Step 3: Cross multiply
    2,148.29x = 3,223.19 × 1,325.60
  4. Step 4: Simplify right side
    2,148.29x = 4,272,660.66
  5. Step 5: Solve for x
    x = 4,272,660.66/2,148.29
  6. Step 6: Final answer
    x = 1,988.87

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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.