Home / 2,226.41-3,340.38-840.14

Finding the Fourth Proportional to 2,226.41, 3,340.38 and 840.14

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Solution

The fourth proportional to 2,226.41, 3,340.38 and 840.14 is: 1,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.41 : 3,340.38 = 840.14 : x
  2. Step 2: Convert to fraction form
    2,226.41/3,340.38 = 840.14/x
  3. Step 3: Cross multiply
    2,226.41x = 3,340.38 × 840.14
  4. Step 4: Simplify right side
    2,226.41x = 2,806,386.85
  5. Step 5: Solve for x
    x = 2,806,386.85/2,226.41
  6. Step 6: Final answer
    x = 1,260.50

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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.