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Finding the Fourth Proportional to 982.08, 1,466.66 and 787.37

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Solution

The fourth proportional to 982.08, 1,466.66 and 787.37 is: 1,175.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.08 : 1,466.66 = 787.37 : x
  2. Step 2: Convert to fraction form
    982.08/1,466.66 = 787.37/x
  3. Step 3: Cross multiply
    982.08x = 1,466.66 × 787.37
  4. Step 4: Simplify right side
    982.08x = 1,154,792.81
  5. Step 5: Solve for x
    x = 1,154,792.81/982.08
  6. Step 6: Final answer
    x = 1,175.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.