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Finding the Fourth Proportional to 675.95, 930.83 and 662.18

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Solution

The fourth proportional to 675.95, 930.83 and 662.18 is: 911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.95 : 930.83 = 662.18 : x
  2. Step 2: Convert to fraction form
    675.95/930.83 = 662.18/x
  3. Step 3: Cross multiply
    675.95x = 930.83 × 662.18
  4. Step 4: Simplify right side
    675.95x = 616,369.04
  5. Step 5: Solve for x
    x = 616,369.04/675.95
  6. Step 6: Final answer
    x = 911.86

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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.