Home / 2,422.20-3,342.70-1,374.34

Finding the Fourth Proportional to 2,422.20, 3,342.70 and 1,374.34

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Solution

The fourth proportional to 2,422.20, 3,342.70 and 1,374.34 is: 1,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.20 : 3,342.70 = 1,374.34 : x
  2. Step 2: Convert to fraction form
    2,422.20/3,342.70 = 1,374.34/x
  3. Step 3: Cross multiply
    2,422.20x = 3,342.70 × 1,374.34
  4. Step 4: Simplify right side
    2,422.20x = 4,594,006.32
  5. Step 5: Solve for x
    x = 4,594,006.32/2,422.20
  6. Step 6: Final answer
    x = 1,896.63

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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.