Home / 3,311.08-4,568.91-1,966.21

Finding the Fourth Proportional to 3,311.08, 4,568.91 and 1,966.21

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Solution

The fourth proportional to 3,311.08, 4,568.91 and 1,966.21 is: 2,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.08 : 4,568.91 = 1,966.21 : x
  2. Step 2: Convert to fraction form
    3,311.08/4,568.91 = 1,966.21/x
  3. Step 3: Cross multiply
    3,311.08x = 4,568.91 × 1,966.21
  4. Step 4: Simplify right side
    3,311.08x = 8,983,417.74
  5. Step 5: Solve for x
    x = 8,983,417.74/3,311.08
  6. Step 6: Final answer
    x = 2,713.14

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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.