Home / 7,206.39-9,945.38-4,020.69

Finding the Fourth Proportional to 7,206.39, 9,945.38 and 4,020.69

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Solution

The fourth proportional to 7,206.39, 9,945.38 and 4,020.69 is: 5,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,206.39 : 9,945.38 = 4,020.69 : x
  2. Step 2: Convert to fraction form
    7,206.39/9,945.38 = 4,020.69/x
  3. Step 3: Cross multiply
    7,206.39x = 9,945.38 × 4,020.69
  4. Step 4: Simplify right side
    7,206.39x = 39,987,289.91
  5. Step 5: Solve for x
    x = 39,987,289.91/7,206.39
  6. Step 6: Final answer
    x = 5,548.87

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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.