Home / 1,948.14-2,918.61-1,218.06

Finding the Fourth Proportional to 1,948.14, 2,918.61 and 1,218.06

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Solution

The fourth proportional to 1,948.14, 2,918.61 and 1,218.06 is: 1,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.14 : 2,918.61 = 1,218.06 : x
  2. Step 2: Convert to fraction form
    1,948.14/2,918.61 = 1,218.06/x
  3. Step 3: Cross multiply
    1,948.14x = 2,918.61 × 1,218.06
  4. Step 4: Simplify right side
    1,948.14x = 3,555,042.10
  5. Step 5: Solve for x
    x = 3,555,042.10/1,948.14
  6. Step 6: Final answer
    x = 1,824.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.