Home / 2,620.92-3,616.87-1,442.03

Finding the Fourth Proportional to 2,620.92, 3,616.87 and 1,442.03

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Solution

The fourth proportional to 2,620.92, 3,616.87 and 1,442.03 is: 1,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.92 : 3,616.87 = 1,442.03 : x
  2. Step 2: Convert to fraction form
    2,620.92/3,616.87 = 1,442.03/x
  3. Step 3: Cross multiply
    2,620.92x = 3,616.87 × 1,442.03
  4. Step 4: Simplify right side
    2,620.92x = 5,215,635.05
  5. Step 5: Solve for x
    x = 5,215,635.05/2,620.92
  6. Step 6: Final answer
    x = 1,990.00

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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.