Home / 2,605.44-3,902.20-1,629.12

Finding the Fourth Proportional to 2,605.44, 3,902.20 and 1,629.12

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Solution

The fourth proportional to 2,605.44, 3,902.20 and 1,629.12 is: 2,439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.44 : 3,902.20 = 1,629.12 : x
  2. Step 2: Convert to fraction form
    2,605.44/3,902.20 = 1,629.12/x
  3. Step 3: Cross multiply
    2,605.44x = 3,902.20 × 1,629.12
  4. Step 4: Simplify right side
    2,605.44x = 6,357,152.06
  5. Step 5: Solve for x
    x = 6,357,152.06/2,605.44
  6. Step 6: Final answer
    x = 2,439.95

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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.