Home / 2,152.95-3,229.41-1,422.36

Finding the Fourth Proportional to 2,152.95, 3,229.41 and 1,422.36

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Solution

The fourth proportional to 2,152.95, 3,229.41 and 1,422.36 is: 2,133.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.95 : 3,229.41 = 1,422.36 : x
  2. Step 2: Convert to fraction form
    2,152.95/3,229.41 = 1,422.36/x
  3. Step 3: Cross multiply
    2,152.95x = 3,229.41 × 1,422.36
  4. Step 4: Simplify right side
    2,152.95x = 4,593,367.46
  5. Step 5: Solve for x
    x = 4,593,367.46/2,152.95
  6. Step 6: Final answer
    x = 2,133.52

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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.