Home / 2,682.20-4,016.10-1,947.80

Finding the Fourth Proportional to 2,682.20, 4,016.10 and 1,947.80

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Solution

The fourth proportional to 2,682.20, 4,016.10 and 1,947.80 is: 2,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.20 : 4,016.10 = 1,947.80 : x
  2. Step 2: Convert to fraction form
    2,682.20/4,016.10 = 1,947.80/x
  3. Step 3: Cross multiply
    2,682.20x = 4,016.10 × 1,947.80
  4. Step 4: Simplify right side
    2,682.20x = 7,822,559.58
  5. Step 5: Solve for x
    x = 7,822,559.58/2,682.20
  6. Step 6: Final answer
    x = 2,916.47

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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.