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Finding the Fourth Proportional to 952.96, 1,316.32 and 787.84

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Solution

The fourth proportional to 952.96, 1,316.32 and 787.84 is: 1,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.96 : 1,316.32 = 787.84 : x
  2. Step 2: Convert to fraction form
    952.96/1,316.32 = 787.84/x
  3. Step 3: Cross multiply
    952.96x = 1,316.32 × 787.84
  4. Step 4: Simplify right side
    952.96x = 1,037,049.55
  5. Step 5: Solve for x
    x = 1,037,049.55/952.96
  6. Step 6: Final answer
    x = 1,088.24

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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.