Home / 3,074.08-4,240.96-2,143.12

Finding the Fourth Proportional to 3,074.08, 4,240.96 and 2,143.12

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Solution

The fourth proportional to 3,074.08, 4,240.96 and 2,143.12 is: 2,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.08 : 4,240.96 = 2,143.12 : x
  2. Step 2: Convert to fraction form
    3,074.08/4,240.96 = 2,143.12/x
  3. Step 3: Cross multiply
    3,074.08x = 4,240.96 × 2,143.12
  4. Step 4: Simplify right side
    3,074.08x = 9,088,886.20
  5. Step 5: Solve for x
    x = 9,088,886.20/3,074.08
  6. Step 6: Final answer
    x = 2,956.62

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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.