Home / 5,525.44-7,628.61-3,430.78

Finding the Fourth Proportional to 5,525.44, 7,628.61 and 3,430.78

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Solution

The fourth proportional to 5,525.44, 7,628.61 and 3,430.78 is: 4,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.44 : 7,628.61 = 3,430.78 : x
  2. Step 2: Convert to fraction form
    5,525.44/7,628.61 = 3,430.78/x
  3. Step 3: Cross multiply
    5,525.44x = 7,628.61 × 3,430.78
  4. Step 4: Simplify right side
    5,525.44x = 26,172,082.62
  5. Step 5: Solve for x
    x = 26,172,082.62/5,525.44
  6. Step 6: Final answer
    x = 4,736.65

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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.