Home / 3,340.56-4,608.24-2,161.20

Finding the Fourth Proportional to 3,340.56, 4,608.24 and 2,161.20

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Solution

The fourth proportional to 3,340.56, 4,608.24 and 2,161.20 is: 2,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.56 : 4,608.24 = 2,161.20 : x
  2. Step 2: Convert to fraction form
    3,340.56/4,608.24 = 2,161.20/x
  3. Step 3: Cross multiply
    3,340.56x = 4,608.24 × 2,161.20
  4. Step 4: Simplify right side
    3,340.56x = 9,959,328.29
  5. Step 5: Solve for x
    x = 9,959,328.29/3,340.56
  6. Step 6: Final answer
    x = 2,981.33

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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.