Home / 2,555.57-3,825.39-1,969.05

Finding the Fourth Proportional to 2,555.57, 3,825.39 and 1,969.05

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Solution

The fourth proportional to 2,555.57, 3,825.39 and 1,969.05 is: 2,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.57 : 3,825.39 = 1,969.05 : x
  2. Step 2: Convert to fraction form
    2,555.57/3,825.39 = 1,969.05/x
  3. Step 3: Cross multiply
    2,555.57x = 3,825.39 × 1,969.05
  4. Step 4: Simplify right side
    2,555.57x = 7,532,384.18
  5. Step 5: Solve for x
    x = 7,532,384.18/2,555.57
  6. Step 6: Final answer
    x = 2,947.44

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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.