Home / 7,766.58-11,650.08-2,220.42

Finding the Fourth Proportional to 7,766.58, 11,650.08 and 2,220.42

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Solution

The fourth proportional to 7,766.58, 11,650.08 and 2,220.42 is: 3,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.58 : 11,650.08 = 2,220.42 : x
  2. Step 2: Convert to fraction form
    7,766.58/11,650.08 = 2,220.42/x
  3. Step 3: Cross multiply
    7,766.58x = 11,650.08 × 2,220.42
  4. Step 4: Simplify right side
    7,766.58x = 25,868,070.63
  5. Step 5: Solve for x
    x = 25,868,070.63/7,766.58
  6. Step 6: Final answer
    x = 3,330.69

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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.