Home / 750.24-1,124.91-287.84

Finding the Fourth Proportional to 750.24, 1,124.91 and 287.84

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Solution

The fourth proportional to 750.24, 1,124.91 and 287.84 is: 431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.24 : 1,124.91 = 287.84 : x
  2. Step 2: Convert to fraction form
    750.24/1,124.91 = 287.84/x
  3. Step 3: Cross multiply
    750.24x = 1,124.91 × 287.84
  4. Step 4: Simplify right side
    750.24x = 323,788.47
  5. Step 5: Solve for x
    x = 323,788.47/750.24
  6. Step 6: Final answer
    x = 431.58

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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.