Home / 1,795.28-2,693.24-640.76

Finding the Fourth Proportional to 1,795.28, 2,693.24 and 640.76

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Solution

The fourth proportional to 1,795.28, 2,693.24 and 640.76 is: 961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.28 : 2,693.24 = 640.76 : x
  2. Step 2: Convert to fraction form
    1,795.28/2,693.24 = 640.76/x
  3. Step 3: Cross multiply
    1,795.28x = 2,693.24 × 640.76
  4. Step 4: Simplify right side
    1,795.28x = 1,725,720.46
  5. Step 5: Solve for x
    x = 1,725,720.46/1,795.28
  6. Step 6: Final answer
    x = 961.25

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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.