Home / 5,278.73-7,914.85-1,816.25

Finding the Fourth Proportional to 5,278.73, 7,914.85 and 1,816.25

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Solution

The fourth proportional to 5,278.73, 7,914.85 and 1,816.25 is: 2,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.73 : 7,914.85 = 1,816.25 : x
  2. Step 2: Convert to fraction form
    5,278.73/7,914.85 = 1,816.25/x
  3. Step 3: Cross multiply
    5,278.73x = 7,914.85 × 1,816.25
  4. Step 4: Simplify right side
    5,278.73x = 14,375,302.20
  5. Step 5: Solve for x
    x = 14,375,302.20/5,278.73
  6. Step 6: Final answer
    x = 2,723.25

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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.