Home / 1,244.28-1,715.94-982.92

Finding the Fourth Proportional to 1,244.28, 1,715.94 and 982.92

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Solution

The fourth proportional to 1,244.28, 1,715.94 and 982.92 is: 1,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.28 : 1,715.94 = 982.92 : x
  2. Step 2: Convert to fraction form
    1,244.28/1,715.94 = 982.92/x
  3. Step 3: Cross multiply
    1,244.28x = 1,715.94 × 982.92
  4. Step 4: Simplify right side
    1,244.28x = 1,686,631.74
  5. Step 5: Solve for x
    x = 1,686,631.74/1,244.28
  6. Step 6: Final answer
    x = 1,355.51

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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.