Home / 1,891.14-2,831.46-1,427.52

Finding the Fourth Proportional to 1,891.14, 2,831.46 and 1,427.52

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Solution

The fourth proportional to 1,891.14, 2,831.46 and 1,427.52 is: 2,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.14 : 2,831.46 = 1,427.52 : x
  2. Step 2: Convert to fraction form
    1,891.14/2,831.46 = 1,427.52/x
  3. Step 3: Cross multiply
    1,891.14x = 2,831.46 × 1,427.52
  4. Step 4: Simplify right side
    1,891.14x = 4,041,965.78
  5. Step 5: Solve for x
    x = 4,041,965.78/1,891.14
  6. Step 6: Final answer
    x = 2,137.32

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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.