Home / 1,898.33-2,619.63-1,112.36

Finding the Fourth Proportional to 1,898.33, 2,619.63 and 1,112.36

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Solution

The fourth proportional to 1,898.33, 2,619.63 and 1,112.36 is: 1,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.33 : 2,619.63 = 1,112.36 : x
  2. Step 2: Convert to fraction form
    1,898.33/2,619.63 = 1,112.36/x
  3. Step 3: Cross multiply
    1,898.33x = 2,619.63 × 1,112.36
  4. Step 4: Simplify right side
    1,898.33x = 2,913,958.53
  5. Step 5: Solve for x
    x = 2,913,958.53/1,898.33
  6. Step 6: Final answer
    x = 1,535.02

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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.