Home / 1,253.49-1,881.99-1,231.62

Finding the Fourth Proportional to 1,253.49, 1,881.99 and 1,231.62

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Solution

The fourth proportional to 1,253.49, 1,881.99 and 1,231.62 is: 1,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.49 : 1,881.99 = 1,231.62 : x
  2. Step 2: Convert to fraction form
    1,253.49/1,881.99 = 1,231.62/x
  3. Step 3: Cross multiply
    1,253.49x = 1,881.99 × 1,231.62
  4. Step 4: Simplify right side
    1,253.49x = 2,317,896.52
  5. Step 5: Solve for x
    x = 2,317,896.52/1,253.49
  6. Step 6: Final answer
    x = 1,849.15

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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.