Home / 1,898.56-2,620.32-1,112.44

Finding the Fourth Proportional to 1,898.56, 2,620.32 and 1,112.44

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Solution

The fourth proportional to 1,898.56, 2,620.32 and 1,112.44 is: 1,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.56 : 2,620.32 = 1,112.44 : x
  2. Step 2: Convert to fraction form
    1,898.56/2,620.32 = 1,112.44/x
  3. Step 3: Cross multiply
    1,898.56x = 2,620.32 × 1,112.44
  4. Step 4: Simplify right side
    1,898.56x = 2,914,948.78
  5. Step 5: Solve for x
    x = 2,914,948.78/1,898.56
  6. Step 6: Final answer
    x = 1,535.35

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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.