Home / 7,764.12-11,646.78-2,217.48

Finding the Fourth Proportional to 7,764.12, 11,646.78 and 2,217.48

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Solution

The fourth proportional to 7,764.12, 11,646.78 and 2,217.48 is: 3,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.12 : 11,646.78 = 2,217.48 : x
  2. Step 2: Convert to fraction form
    7,764.12/11,646.78 = 2,217.48/x
  3. Step 3: Cross multiply
    7,764.12x = 11,646.78 × 2,217.48
  4. Step 4: Simplify right side
    7,764.12x = 25,826,501.71
  5. Step 5: Solve for x
    x = 25,826,501.71/7,764.12
  6. Step 6: Final answer
    x = 3,326.39

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1.5x scale

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.