Home / 7,987.31-11,975.29-3,052.79

Finding the Fourth Proportional to 7,987.31, 11,975.29 and 3,052.79

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Solution

The fourth proportional to 7,987.31, 11,975.29 and 3,052.79 is: 4,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.31 : 11,975.29 = 3,052.79 : x
  2. Step 2: Convert to fraction form
    7,987.31/11,975.29 = 3,052.79/x
  3. Step 3: Cross multiply
    7,987.31x = 11,975.29 × 3,052.79
  4. Step 4: Simplify right side
    7,987.31x = 36,557,970.42
  5. Step 5: Solve for x
    x = 36,557,970.42/7,987.31
  6. Step 6: Final answer
    x = 4,577.01

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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.