Home / 7,770.28-10,722.68-4,233.52

Finding the Fourth Proportional to 7,770.28, 10,722.68 and 4,233.52

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Solution

The fourth proportional to 7,770.28, 10,722.68 and 4,233.52 is: 5,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.28 : 10,722.68 = 4,233.52 : x
  2. Step 2: Convert to fraction form
    7,770.28/10,722.68 = 4,233.52/x
  3. Step 3: Cross multiply
    7,770.28x = 10,722.68 × 4,233.52
  4. Step 4: Simplify right side
    7,770.28x = 45,394,680.23
  5. Step 5: Solve for x
    x = 45,394,680.23/7,770.28
  6. Step 6: Final answer
    x = 5,842.09

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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.