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Finding the Fourth Proportional to 701.94, 966.15 and 618.51

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Solution

The fourth proportional to 701.94, 966.15 and 618.51 is: 851.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.94 : 966.15 = 618.51 : x
  2. Step 2: Convert to fraction form
    701.94/966.15 = 618.51/x
  3. Step 3: Cross multiply
    701.94x = 966.15 × 618.51
  4. Step 4: Simplify right side
    701.94x = 597,573.44
  5. Step 5: Solve for x
    x = 597,573.44/701.94
  6. Step 6: Final answer
    x = 851.32

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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.