Home / 7,770.20-10,722.75-4,233.47

Finding the Fourth Proportional to 7,770.20, 10,722.75 and 4,233.47

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Solution

The fourth proportional to 7,770.20, 10,722.75 and 4,233.47 is: 5,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.20 : 10,722.75 = 4,233.47 : x
  2. Step 2: Convert to fraction form
    7,770.20/10,722.75 = 4,233.47/x
  3. Step 3: Cross multiply
    7,770.20x = 10,722.75 × 4,233.47
  4. Step 4: Simplify right side
    7,770.20x = 45,394,440.44
  5. Step 5: Solve for x
    x = 45,394,440.44/7,770.20
  6. Step 6: Final answer
    x = 5,842.12

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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.