Home / 5,272.31-7,908.96-1,376.72

Finding the Fourth Proportional to 5,272.31, 7,908.96 and 1,376.72

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Solution

The fourth proportional to 5,272.31, 7,908.96 and 1,376.72 is: 2,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.31 : 7,908.96 = 1,376.72 : x
  2. Step 2: Convert to fraction form
    5,272.31/7,908.96 = 1,376.72/x
  3. Step 3: Cross multiply
    5,272.31x = 7,908.96 × 1,376.72
  4. Step 4: Simplify right side
    5,272.31x = 10,888,383.87
  5. Step 5: Solve for x
    x = 10,888,383.87/5,272.31
  6. Step 6: Final answer
    x = 2,065.20

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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.