Home / 3,049.23-4,209.90-2,491.05

Finding the Fourth Proportional to 3,049.23, 4,209.90 and 2,491.05

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Solution

The fourth proportional to 3,049.23, 4,209.90 and 2,491.05 is: 3,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.23 : 4,209.90 = 2,491.05 : x
  2. Step 2: Convert to fraction form
    3,049.23/4,209.90 = 2,491.05/x
  3. Step 3: Cross multiply
    3,049.23x = 4,209.90 × 2,491.05
  4. Step 4: Simplify right side
    3,049.23x = 10,487,071.40
  5. Step 5: Solve for x
    x = 10,487,071.40/3,049.23
  6. Step 6: Final answer
    x = 3,439.25

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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.