Home / 7,764.16-11,646.28-2,217.60

Finding the Fourth Proportional to 7,764.16, 11,646.28 and 2,217.60

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Solution

The fourth proportional to 7,764.16, 11,646.28 and 2,217.60 is: 3,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.16 : 11,646.28 = 2,217.60 : x
  2. Step 2: Convert to fraction form
    7,764.16/11,646.28 = 2,217.60/x
  3. Step 3: Cross multiply
    7,764.16x = 11,646.28 × 2,217.60
  4. Step 4: Simplify right side
    7,764.16x = 25,826,790.53
  5. Step 5: Solve for x
    x = 25,826,790.53/7,764.16
  6. Step 6: Final answer
    x = 3,326.41

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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.