Home / 1,265.12-1,882.72-1,219.04

Finding the Fourth Proportional to 1,265.12, 1,882.72 and 1,219.04

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Solution

The fourth proportional to 1,265.12, 1,882.72 and 1,219.04 is: 1,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.12 : 1,882.72 = 1,219.04 : x
  2. Step 2: Convert to fraction form
    1,265.12/1,882.72 = 1,219.04/x
  3. Step 3: Cross multiply
    1,265.12x = 1,882.72 × 1,219.04
  4. Step 4: Simplify right side
    1,265.12x = 2,295,110.99
  5. Step 5: Solve for x
    x = 2,295,110.99/1,265.12
  6. Step 6: Final answer
    x = 1,814.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.