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Finding the Fourth Proportional to 704.24, 976.38 and 671.36

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Solution

The fourth proportional to 704.24, 976.38 and 671.36 is: 930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.24 : 976.38 = 671.36 : x
  2. Step 2: Convert to fraction form
    704.24/976.38 = 671.36/x
  3. Step 3: Cross multiply
    704.24x = 976.38 × 671.36
  4. Step 4: Simplify right side
    704.24x = 655,502.48
  5. Step 5: Solve for x
    x = 655,502.48/704.24
  6. Step 6: Final answer
    x = 930.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.