Home / 1,122.12-1,548.46-650.04

Finding the Fourth Proportional to 1,122.12, 1,548.46 and 650.04

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Solution

The fourth proportional to 1,122.12, 1,548.46 and 650.04 is: 897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.12 : 1,548.46 = 650.04 : x
  2. Step 2: Convert to fraction form
    1,122.12/1,548.46 = 650.04/x
  3. Step 3: Cross multiply
    1,122.12x = 1,548.46 × 650.04
  4. Step 4: Simplify right side
    1,122.12x = 1,006,560.94
  5. Step 5: Solve for x
    x = 1,006,560.94/1,122.12
  6. Step 6: Final answer
    x = 897.02

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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.