Home / 3,785.12-5,677.68-2,321.65

Finding the Fourth Proportional to 3,785.12, 5,677.68 and 2,321.65

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Solution

The fourth proportional to 3,785.12, 5,677.68 and 2,321.65 is: 3,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.12 : 5,677.68 = 2,321.65 : x
  2. Step 2: Convert to fraction form
    3,785.12/5,677.68 = 2,321.65/x
  3. Step 3: Cross multiply
    3,785.12x = 5,677.68 × 2,321.65
  4. Step 4: Simplify right side
    3,785.12x = 13,181,585.77
  5. Step 5: Solve for x
    x = 13,181,585.77/3,785.12
  6. Step 6: Final answer
    x = 3,482.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.