Home / 7,091.29-9,785.55-4,106.92

Finding the Fourth Proportional to 7,091.29, 9,785.55 and 4,106.92

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Solution

The fourth proportional to 7,091.29, 9,785.55 and 4,106.92 is: 5,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.29 : 9,785.55 = 4,106.92 : x
  2. Step 2: Convert to fraction form
    7,091.29/9,785.55 = 4,106.92/x
  3. Step 3: Cross multiply
    7,091.29x = 9,785.55 × 4,106.92
  4. Step 4: Simplify right side
    7,091.29x = 40,188,422.08
  5. Step 5: Solve for x
    x = 40,188,422.08/7,091.29
  6. Step 6: Final answer
    x = 5,667.30

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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.