Home / 1,247.96-1,721.84-750.53

Finding the Fourth Proportional to 1,247.96, 1,721.84 and 750.53

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Solution

The fourth proportional to 1,247.96, 1,721.84 and 750.53 is: 1,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.96 : 1,721.84 = 750.53 : x
  2. Step 2: Convert to fraction form
    1,247.96/1,721.84 = 750.53/x
  3. Step 3: Cross multiply
    1,247.96x = 1,721.84 × 750.53
  4. Step 4: Simplify right side
    1,247.96x = 1,292,280.21
  5. Step 5: Solve for x
    x = 1,292,280.21/1,247.96
  6. Step 6: Final answer
    x = 1,035.52

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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.