Home / 1,197.12-1,652.22-1,000.56

Finding the Fourth Proportional to 1,197.12, 1,652.22 and 1,000.56

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Solution

The fourth proportional to 1,197.12, 1,652.22 and 1,000.56 is: 1,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.12 : 1,652.22 = 1,000.56 : x
  2. Step 2: Convert to fraction form
    1,197.12/1,652.22 = 1,000.56/x
  3. Step 3: Cross multiply
    1,197.12x = 1,652.22 × 1,000.56
  4. Step 4: Simplify right side
    1,197.12x = 1,653,145.24
  5. Step 5: Solve for x
    x = 1,653,145.24/1,197.12
  6. Step 6: Final answer
    x = 1,380.94

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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.