Home / 1,947.90-2,918.61-1,369.56

Finding the Fourth Proportional to 1,947.90, 2,918.61 and 1,369.56

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Solution

The fourth proportional to 1,947.90, 2,918.61 and 1,369.56 is: 2,052.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.90 : 2,918.61 = 1,369.56 : x
  2. Step 2: Convert to fraction form
    1,947.90/2,918.61 = 1,369.56/x
  3. Step 3: Cross multiply
    1,947.90x = 2,918.61 × 1,369.56
  4. Step 4: Simplify right side
    1,947.90x = 3,997,211.51
  5. Step 5: Solve for x
    x = 3,997,211.51/1,947.90
  6. Step 6: Final answer
    x = 2,052.06

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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.