Home / 5,535.27-7,628.18-3,960.63

Finding the Fourth Proportional to 5,535.27, 7,628.18 and 3,960.63

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Solution

The fourth proportional to 5,535.27, 7,628.18 and 3,960.63 is: 5,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.27 : 7,628.18 = 3,960.63 : x
  2. Step 2: Convert to fraction form
    5,535.27/7,628.18 = 3,960.63/x
  3. Step 3: Cross multiply
    5,535.27x = 7,628.18 × 3,960.63
  4. Step 4: Simplify right side
    5,535.27x = 30,212,378.75
  5. Step 5: Solve for x
    x = 30,212,378.75/5,535.27
  6. Step 6: Final answer
    x = 5,458.16

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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.