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Finding the Fourth Proportional to 4,888.50, 7,334.10 and 1,425.75

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Solution

The fourth proportional to 4,888.50, 7,334.10 and 1,425.75 is: 2,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.50 : 7,334.10 = 1,425.75 : x
  2. Step 2: Convert to fraction form
    4,888.50/7,334.10 = 1,425.75/x
  3. Step 3: Cross multiply
    4,888.50x = 7,334.10 × 1,425.75
  4. Step 4: Simplify right side
    4,888.50x = 10,456,593.08
  5. Step 5: Solve for x
    x = 10,456,593.08/4,888.50
  6. Step 6: Final answer
    x = 2,139.02

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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.