Home / 7,726.22-10,662.20-4,189.42

Finding the Fourth Proportional to 7,726.22, 10,662.20 and 4,189.42

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Solution

The fourth proportional to 7,726.22, 10,662.20 and 4,189.42 is: 5,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.22 : 10,662.20 = 4,189.42 : x
  2. Step 2: Convert to fraction form
    7,726.22/10,662.20 = 4,189.42/x
  3. Step 3: Cross multiply
    7,726.22x = 10,662.20 × 4,189.42
  4. Step 4: Simplify right side
    7,726.22x = 44,668,442.01
  5. Step 5: Solve for x
    x = 44,668,442.01/7,726.22
  6. Step 6: Final answer
    x = 5,781.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.