Home / 1,232.29-1,701.22-979.72

Finding the Fourth Proportional to 1,232.29, 1,701.22 and 979.72

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Solution

The fourth proportional to 1,232.29, 1,701.22 and 979.72 is: 1,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.29 : 1,701.22 = 979.72 : x
  2. Step 2: Convert to fraction form
    1,232.29/1,701.22 = 979.72/x
  3. Step 3: Cross multiply
    1,232.29x = 1,701.22 × 979.72
  4. Step 4: Simplify right side
    1,232.29x = 1,666,719.26
  5. Step 5: Solve for x
    x = 1,666,719.26/1,232.29
  6. Step 6: Final answer
    x = 1,352.54

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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.