Home / 2,826.14-3,899.49-1,831.28

Finding the Fourth Proportional to 2,826.14, 3,899.49 and 1,831.28

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Solution

The fourth proportional to 2,826.14, 3,899.49 and 1,831.28 is: 2,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.14 : 3,899.49 = 1,831.28 : x
  2. Step 2: Convert to fraction form
    2,826.14/3,899.49 = 1,831.28/x
  3. Step 3: Cross multiply
    2,826.14x = 3,899.49 × 1,831.28
  4. Step 4: Simplify right side
    2,826.14x = 7,141,058.05
  5. Step 5: Solve for x
    x = 7,141,058.05/2,826.14
  6. Step 6: Final answer
    x = 2,526.79

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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.