Home / 7,073.25-9,761.49-3,930.45

Finding the Fourth Proportional to 7,073.25, 9,761.49 and 3,930.45

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Solution

The fourth proportional to 7,073.25, 9,761.49 and 3,930.45 is: 5,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.25 : 9,761.49 = 3,930.45 : x
  2. Step 2: Convert to fraction form
    7,073.25/9,761.49 = 3,930.45/x
  3. Step 3: Cross multiply
    7,073.25x = 9,761.49 × 3,930.45
  4. Step 4: Simplify right side
    7,073.25x = 38,367,048.37
  5. Step 5: Solve for x
    x = 38,367,048.37/7,073.25
  6. Step 6: Final answer
    x = 5,424.25

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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.