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Finding the Fourth Proportional to 7,157.88, 10,734.12 and 3,458.88

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Solution

The fourth proportional to 7,157.88, 10,734.12 and 3,458.88 is: 5,187.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.88 : 10,734.12 = 3,458.88 : x
  2. Step 2: Convert to fraction form
    7,157.88/10,734.12 = 3,458.88/x
  3. Step 3: Cross multiply
    7,157.88x = 10,734.12 × 3,458.88
  4. Step 4: Simplify right side
    7,157.88x = 37,128,032.99
  5. Step 5: Solve for x
    x = 37,128,032.99/7,157.88
  6. Step 6: Final answer
    x = 5,187.02

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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.