Home / 5,272.55-7,908.82-1,376.92

Finding the Fourth Proportional to 5,272.55, 7,908.82 and 1,376.92

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Solution

The fourth proportional to 5,272.55, 7,908.82 and 1,376.92 is: 2,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.55 : 7,908.82 = 1,376.92 : x
  2. Step 2: Convert to fraction form
    5,272.55/7,908.82 = 1,376.92/x
  3. Step 3: Cross multiply
    5,272.55x = 7,908.82 × 1,376.92
  4. Step 4: Simplify right side
    5,272.55x = 10,889,812.43
  5. Step 5: Solve for x
    x = 10,889,812.43/5,272.55
  6. Step 6: Final answer
    x = 2,065.38

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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.