Home / 2,405.10-3,318.78-2,228.73

Finding the Fourth Proportional to 2,405.10, 3,318.78 and 2,228.73

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Solution

The fourth proportional to 2,405.10, 3,318.78 and 2,228.73 is: 3,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.10 : 3,318.78 = 2,228.73 : x
  2. Step 2: Convert to fraction form
    2,405.10/3,318.78 = 2,228.73/x
  3. Step 3: Cross multiply
    2,405.10x = 3,318.78 × 2,228.73
  4. Step 4: Simplify right side
    2,405.10x = 7,396,664.55
  5. Step 5: Solve for x
    x = 7,396,664.55/2,405.10
  6. Step 6: Final answer
    x = 3,075.41

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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.