Home / 7,766.28-11,647.47-2,219.66

Finding the Fourth Proportional to 7,766.28, 11,647.47 and 2,219.66

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Solution

The fourth proportional to 7,766.28, 11,647.47 and 2,219.66 is: 3,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.28 : 11,647.47 = 2,219.66 : x
  2. Step 2: Convert to fraction form
    7,766.28/11,647.47 = 2,219.66/x
  3. Step 3: Cross multiply
    7,766.28x = 11,647.47 × 2,219.66
  4. Step 4: Simplify right side
    7,766.28x = 25,853,423.26
  5. Step 5: Solve for x
    x = 25,853,423.26/7,766.28
  6. Step 6: Final answer
    x = 3,328.93

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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.