Home / 1,898.09-2,619.10-1,112.39

Finding the Fourth Proportional to 1,898.09, 2,619.10 and 1,112.39

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Solution

The fourth proportional to 1,898.09, 2,619.10 and 1,112.39 is: 1,534.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.09 : 2,619.10 = 1,112.39 : x
  2. Step 2: Convert to fraction form
    1,898.09/2,619.10 = 1,112.39/x
  3. Step 3: Cross multiply
    1,898.09x = 2,619.10 × 1,112.39
  4. Step 4: Simplify right side
    1,898.09x = 2,913,460.65
  5. Step 5: Solve for x
    x = 2,913,460.65/1,898.09
  6. Step 6: Final answer
    x = 1,534.94

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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.