Home / 3,519.35-4,856.86-1,947.45

Finding the Fourth Proportional to 3,519.35, 4,856.86 and 1,947.45

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Solution

The fourth proportional to 3,519.35, 4,856.86 and 1,947.45 is: 2,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.35 : 4,856.86 = 1,947.45 : x
  2. Step 2: Convert to fraction form
    3,519.35/4,856.86 = 1,947.45/x
  3. Step 3: Cross multiply
    3,519.35x = 4,856.86 × 1,947.45
  4. Step 4: Simplify right side
    3,519.35x = 9,458,463.46
  5. Step 5: Solve for x
    x = 9,458,463.46/3,519.35
  6. Step 6: Final answer
    x = 2,687.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.