Home / 3,251.08-4,482.96-2,131.64

Finding the Fourth Proportional to 3,251.08, 4,482.96 and 2,131.64

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Solution

The fourth proportional to 3,251.08, 4,482.96 and 2,131.64 is: 2,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.08 : 4,482.96 = 2,131.64 : x
  2. Step 2: Convert to fraction form
    3,251.08/4,482.96 = 2,131.64/x
  3. Step 3: Cross multiply
    3,251.08x = 4,482.96 × 2,131.64
  4. Step 4: Simplify right side
    3,251.08x = 9,556,056.85
  5. Step 5: Solve for x
    x = 9,556,056.85/3,251.08
  6. Step 6: Final answer
    x = 2,939.35

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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.