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Finding the Fourth Proportional to 3,454.67, 5,181.05 and 955.26

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Solution

The fourth proportional to 3,454.67, 5,181.05 and 955.26 is: 1,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.67 : 5,181.05 = 955.26 : x
  2. Step 2: Convert to fraction form
    3,454.67/5,181.05 = 955.26/x
  3. Step 3: Cross multiply
    3,454.67x = 5,181.05 × 955.26
  4. Step 4: Simplify right side
    3,454.67x = 4,949,252.21
  5. Step 5: Solve for x
    x = 4,949,252.21/3,454.67
  6. Step 6: Final answer
    x = 1,432.63

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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.