Home / 1,248.08-1,721.44-750.56

Finding the Fourth Proportional to 1,248.08, 1,721.44 and 750.56

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Solution

The fourth proportional to 1,248.08, 1,721.44 and 750.56 is: 1,035.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.08 : 1,721.44 = 750.56 : x
  2. Step 2: Convert to fraction form
    1,248.08/1,721.44 = 750.56/x
  3. Step 3: Cross multiply
    1,248.08x = 1,721.44 × 750.56
  4. Step 4: Simplify right side
    1,248.08x = 1,292,044.01
  5. Step 5: Solve for x
    x = 1,292,044.01/1,248.08
  6. Step 6: Final answer
    x = 1,035.23

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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.