Home / 3,947.58-5,919.57-1,348.74

Finding the Fourth Proportional to 3,947.58, 5,919.57 and 1,348.74

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Solution

The fourth proportional to 3,947.58, 5,919.57 and 1,348.74 is: 2,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.58 : 5,919.57 = 1,348.74 : x
  2. Step 2: Convert to fraction form
    3,947.58/5,919.57 = 1,348.74/x
  3. Step 3: Cross multiply
    3,947.58x = 5,919.57 × 1,348.74
  4. Step 4: Simplify right side
    3,947.58x = 7,983,960.84
  5. Step 5: Solve for x
    x = 7,983,960.84/3,947.58
  6. Step 6: Final answer
    x = 2,022.50

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1.5x scale

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.