Home / 1,947.06-2,919.51-1,399.50

Finding the Fourth Proportional to 1,947.06, 2,919.51 and 1,399.50

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Solution

The fourth proportional to 1,947.06, 2,919.51 and 1,399.50 is: 2,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.06 : 2,919.51 = 1,399.50 : x
  2. Step 2: Convert to fraction form
    1,947.06/2,919.51 = 1,399.50/x
  3. Step 3: Cross multiply
    1,947.06x = 2,919.51 × 1,399.50
  4. Step 4: Simplify right side
    1,947.06x = 4,085,854.25
  5. Step 5: Solve for x
    x = 4,085,854.25/1,947.06
  6. Step 6: Final answer
    x = 2,098.47

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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.