Home / 1,898.22-2,619.37-1,112.12

Finding the Fourth Proportional to 1,898.22, 2,619.37 and 1,112.12

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Solution

The fourth proportional to 1,898.22, 2,619.37 and 1,112.12 is: 1,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.22 : 2,619.37 = 1,112.12 : x
  2. Step 2: Convert to fraction form
    1,898.22/2,619.37 = 1,112.12/x
  3. Step 3: Cross multiply
    1,898.22x = 2,619.37 × 1,112.12
  4. Step 4: Simplify right side
    1,898.22x = 2,913,053.76
  5. Step 5: Solve for x
    x = 2,913,053.76/1,898.22
  6. Step 6: Final answer
    x = 1,534.62

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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.