Home / 2,798.43-3,862.55-1,620.18

Finding the Fourth Proportional to 2,798.43, 3,862.55 and 1,620.18

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Solution

The fourth proportional to 2,798.43, 3,862.55 and 1,620.18 is: 2,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.43 : 3,862.55 = 1,620.18 : x
  2. Step 2: Convert to fraction form
    2,798.43/3,862.55 = 1,620.18/x
  3. Step 3: Cross multiply
    2,798.43x = 3,862.55 × 1,620.18
  4. Step 4: Simplify right side
    2,798.43x = 6,258,018.16
  5. Step 5: Solve for x
    x = 6,258,018.16/2,798.43
  6. Step 6: Final answer
    x = 2,236.26

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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.