Home / 7,977.93-11,967.35-2,431.45

Finding the Fourth Proportional to 7,977.93, 11,967.35 and 2,431.45

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Solution

The fourth proportional to 7,977.93, 11,967.35 and 2,431.45 is: 3,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.93 : 11,967.35 = 2,431.45 : x
  2. Step 2: Convert to fraction form
    7,977.93/11,967.35 = 2,431.45/x
  3. Step 3: Cross multiply
    7,977.93x = 11,967.35 × 2,431.45
  4. Step 4: Simplify right side
    7,977.93x = 29,098,013.16
  5. Step 5: Solve for x
    x = 29,098,013.16/7,977.93
  6. Step 6: Final answer
    x = 3,647.31

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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.