Home / 2,045.20-3,049.40-2,012.80

Finding the Fourth Proportional to 2,045.20, 3,049.40 and 2,012.80

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Solution

The fourth proportional to 2,045.20, 3,049.40 and 2,012.80 is: 3,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.20 : 3,049.40 = 2,012.80 : x
  2. Step 2: Convert to fraction form
    2,045.20/3,049.40 = 2,012.80/x
  3. Step 3: Cross multiply
    2,045.20x = 3,049.40 × 2,012.80
  4. Step 4: Simplify right side
    2,045.20x = 6,137,832.32
  5. Step 5: Solve for x
    x = 6,137,832.32/2,045.20
  6. Step 6: Final answer
    x = 3,001.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.