Home / 7,327.97-10,112.58-3,970.87

Finding the Fourth Proportional to 7,327.97, 10,112.58 and 3,970.87

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Solution

The fourth proportional to 7,327.97, 10,112.58 and 3,970.87 is: 5,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.97 : 10,112.58 = 3,970.87 : x
  2. Step 2: Convert to fraction form
    7,327.97/10,112.58 = 3,970.87/x
  3. Step 3: Cross multiply
    7,327.97x = 10,112.58 × 3,970.87
  4. Step 4: Simplify right side
    7,327.97x = 40,155,740.54
  5. Step 5: Solve for x
    x = 40,155,740.54/7,327.97
  6. Step 6: Final answer
    x = 5,479.79

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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.