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Finding the Fourth Proportional to 5,454.71, 8,168.34 and 4,955.30

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Solution

The fourth proportional to 5,454.71, 8,168.34 and 4,955.30 is: 7,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.71 : 8,168.34 = 4,955.30 : x
  2. Step 2: Convert to fraction form
    5,454.71/8,168.34 = 4,955.30/x
  3. Step 3: Cross multiply
    5,454.71x = 8,168.34 × 4,955.30
  4. Step 4: Simplify right side
    5,454.71x = 40,476,575.20
  5. Step 5: Solve for x
    x = 40,476,575.20/5,454.71
  6. Step 6: Final answer
    x = 7,420.48

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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.