Home / 1,613.70-2,422.60-1,371.76

Finding the Fourth Proportional to 1,613.70, 2,422.60 and 1,371.76

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Solution

The fourth proportional to 1,613.70, 2,422.60 and 1,371.76 is: 2,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.70 : 2,422.60 = 1,371.76 : x
  2. Step 2: Convert to fraction form
    1,613.70/2,422.60 = 1,371.76/x
  3. Step 3: Cross multiply
    1,613.70x = 2,422.60 × 1,371.76
  4. Step 4: Simplify right side
    1,613.70x = 3,323,225.78
  5. Step 5: Solve for x
    x = 3,323,225.78/1,613.70
  6. Step 6: Final answer
    x = 2,059.38

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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.