Home / 7,651.78-11,475.16-2,971.46

Finding the Fourth Proportional to 7,651.78, 11,475.16 and 2,971.46

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Solution

The fourth proportional to 7,651.78, 11,475.16 and 2,971.46 is: 4,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.78 : 11,475.16 = 2,971.46 : x
  2. Step 2: Convert to fraction form
    7,651.78/11,475.16 = 2,971.46/x
  3. Step 3: Cross multiply
    7,651.78x = 11,475.16 × 2,971.46
  4. Step 4: Simplify right side
    7,651.78x = 34,097,978.93
  5. Step 5: Solve for x
    x = 34,097,978.93/7,651.78
  6. Step 6: Final answer
    x = 4,456.22

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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.