Home / 7,966.81-11,952.11-2,420.47

Finding the Fourth Proportional to 7,966.81, 11,952.11 and 2,420.47

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Solution

The fourth proportional to 7,966.81, 11,952.11 and 2,420.47 is: 3,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.81 : 11,952.11 = 2,420.47 : x
  2. Step 2: Convert to fraction form
    7,966.81/11,952.11 = 2,420.47/x
  3. Step 3: Cross multiply
    7,966.81x = 11,952.11 × 2,420.47
  4. Step 4: Simplify right side
    7,966.81x = 28,929,723.69
  5. Step 5: Solve for x
    x = 28,929,723.69/7,966.81
  6. Step 6: Final answer
    x = 3,631.28

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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.