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Finding the Fourth Proportional to 951.33, 1,313.54 and 619.94

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Solution

The fourth proportional to 951.33, 1,313.54 and 619.94 is: 855.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.33 : 1,313.54 = 619.94 : x
  2. Step 2: Convert to fraction form
    951.33/1,313.54 = 619.94/x
  3. Step 3: Cross multiply
    951.33x = 1,313.54 × 619.94
  4. Step 4: Simplify right side
    951.33x = 814,310.97
  5. Step 5: Solve for x
    x = 814,310.97/951.33
  6. Step 6: Final answer
    x = 855.97

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1.5x scale

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.