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Finding the Fourth Proportional to 968.03, 1,335.38 and 613.35

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Solution

The fourth proportional to 968.03, 1,335.38 and 613.35 is: 846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.03 : 1,335.38 = 613.35 : x
  2. Step 2: Convert to fraction form
    968.03/1,335.38 = 613.35/x
  3. Step 3: Cross multiply
    968.03x = 1,335.38 × 613.35
  4. Step 4: Simplify right side
    968.03x = 819,052.26
  5. Step 5: Solve for x
    x = 819,052.26/968.03
  6. Step 6: Final answer
    x = 846.11

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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.