Home / 7,767.66-11,648.80-2,219.52

Finding the Fourth Proportional to 7,767.66, 11,648.80 and 2,219.52

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Solution

The fourth proportional to 7,767.66, 11,648.80 and 2,219.52 is: 3,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.66 : 11,648.80 = 2,219.52 : x
  2. Step 2: Convert to fraction form
    7,767.66/11,648.80 = 2,219.52/x
  3. Step 3: Cross multiply
    7,767.66x = 11,648.80 × 2,219.52
  4. Step 4: Simplify right side
    7,767.66x = 25,854,744.58
  5. Step 5: Solve for x
    x = 25,854,744.58/7,767.66
  6. Step 6: Final answer
    x = 3,328.51

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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.