Home / 2,428.44-3,353.22-1,980.39

Finding the Fourth Proportional to 2,428.44, 3,353.22 and 1,980.39

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Solution

The fourth proportional to 2,428.44, 3,353.22 and 1,980.39 is: 2,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.44 : 3,353.22 = 1,980.39 : x
  2. Step 2: Convert to fraction form
    2,428.44/3,353.22 = 1,980.39/x
  3. Step 3: Cross multiply
    2,428.44x = 3,353.22 × 1,980.39
  4. Step 4: Simplify right side
    2,428.44x = 6,640,683.36
  5. Step 5: Solve for x
    x = 6,640,683.36/2,428.44
  6. Step 6: Final answer
    x = 2,734.55

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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.