Home / 1,184.24-1,634.16-680.11

Finding the Fourth Proportional to 1,184.24, 1,634.16 and 680.11

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Solution

The fourth proportional to 1,184.24, 1,634.16 and 680.11 is: 938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.24 : 1,634.16 = 680.11 : x
  2. Step 2: Convert to fraction form
    1,184.24/1,634.16 = 680.11/x
  3. Step 3: Cross multiply
    1,184.24x = 1,634.16 × 680.11
  4. Step 4: Simplify right side
    1,184.24x = 1,111,408.56
  5. Step 5: Solve for x
    x = 1,111,408.56/1,184.24
  6. Step 6: Final answer
    x = 938.50

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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.