Home / 1,193.07-1,642.68-1,083.72

Finding the Fourth Proportional to 1,193.07, 1,642.68 and 1,083.72

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Solution

The fourth proportional to 1,193.07, 1,642.68 and 1,083.72 is: 1,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.07 : 1,642.68 = 1,083.72 : x
  2. Step 2: Convert to fraction form
    1,193.07/1,642.68 = 1,083.72/x
  3. Step 3: Cross multiply
    1,193.07x = 1,642.68 × 1,083.72
  4. Step 4: Simplify right side
    1,193.07x = 1,780,205.17
  5. Step 5: Solve for x
    x = 1,780,205.17/1,193.07
  6. Step 6: Final answer
    x = 1,492.12

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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.