Home / 7,091.30-9,785.14-4,106.72

Finding the Fourth Proportional to 7,091.30, 9,785.14 and 4,106.72

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Solution

The fourth proportional to 7,091.30, 9,785.14 and 4,106.72 is: 5,666.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.30 : 9,785.14 = 4,106.72 : x
  2. Step 2: Convert to fraction form
    7,091.30/9,785.14 = 4,106.72/x
  3. Step 3: Cross multiply
    7,091.30x = 9,785.14 × 4,106.72
  4. Step 4: Simplify right side
    7,091.30x = 40,184,830.14
  5. Step 5: Solve for x
    x = 40,184,830.14/7,091.30
  6. Step 6: Final answer
    x = 5,666.78

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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.