Home / 1,947.96-2,919.36-1,165.44

Finding the Fourth Proportional to 1,947.96, 2,919.36 and 1,165.44

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Solution

The fourth proportional to 1,947.96, 2,919.36 and 1,165.44 is: 1,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.96 : 2,919.36 = 1,165.44 : x
  2. Step 2: Convert to fraction form
    1,947.96/2,919.36 = 1,165.44/x
  3. Step 3: Cross multiply
    1,947.96x = 2,919.36 × 1,165.44
  4. Step 4: Simplify right side
    1,947.96x = 3,402,338.92
  5. Step 5: Solve for x
    x = 3,402,338.92/1,947.96
  6. Step 6: Final answer
    x = 1,746.62

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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.