Home / 1,195.16-1,789.50-981.32

Finding the Fourth Proportional to 1,195.16, 1,789.50 and 981.32

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Solution

The fourth proportional to 1,195.16, 1,789.50 and 981.32 is: 1,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.16 : 1,789.50 = 981.32 : x
  2. Step 2: Convert to fraction form
    1,195.16/1,789.50 = 981.32/x
  3. Step 3: Cross multiply
    1,195.16x = 1,789.50 × 981.32
  4. Step 4: Simplify right side
    1,195.16x = 1,756,072.14
  5. Step 5: Solve for x
    x = 1,756,072.14/1,195.16
  6. Step 6: Final answer
    x = 1,469.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.