Home / 2,620.81-3,616.70-1,441.85

Finding the Fourth Proportional to 2,620.81, 3,616.70 and 1,441.85

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Solution

The fourth proportional to 2,620.81, 3,616.70 and 1,441.85 is: 1,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.81 : 3,616.70 = 1,441.85 : x
  2. Step 2: Convert to fraction form
    2,620.81/3,616.70 = 1,441.85/x
  3. Step 3: Cross multiply
    2,620.81x = 3,616.70 × 1,441.85
  4. Step 4: Simplify right side
    2,620.81x = 5,214,742.06
  5. Step 5: Solve for x
    x = 5,214,742.06/2,620.81
  6. Step 6: Final answer
    x = 1,989.75

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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.