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Finding the Fourth Proportional to 5,242.54, 7,863.55 and 1,955.38

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Solution

The fourth proportional to 5,242.54, 7,863.55 and 1,955.38 is: 2,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.54 : 7,863.55 = 1,955.38 : x
  2. Step 2: Convert to fraction form
    5,242.54/7,863.55 = 1,955.38/x
  3. Step 3: Cross multiply
    5,242.54x = 7,863.55 × 1,955.38
  4. Step 4: Simplify right side
    5,242.54x = 15,376,189.08
  5. Step 5: Solve for x
    x = 15,376,189.08/5,242.54
  6. Step 6: Final answer
    x = 2,932.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.