Home / 2,810.46-4,221.15-2,290.84

Finding the Fourth Proportional to 2,810.46, 4,221.15 and 2,290.84

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Solution

The fourth proportional to 2,810.46, 4,221.15 and 2,290.84 is: 3,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.46 : 4,221.15 = 2,290.84 : x
  2. Step 2: Convert to fraction form
    2,810.46/4,221.15 = 2,290.84/x
  3. Step 3: Cross multiply
    2,810.46x = 4,221.15 × 2,290.84
  4. Step 4: Simplify right side
    2,810.46x = 9,669,979.27
  5. Step 5: Solve for x
    x = 9,669,979.27/2,810.46
  6. Step 6: Final answer
    x = 3,440.71

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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.