Home / 3,519.21-4,856.55-1,947.42

Finding the Fourth Proportional to 3,519.21, 4,856.55 and 1,947.42

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Solution

The fourth proportional to 3,519.21, 4,856.55 and 1,947.42 is: 2,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.21 : 4,856.55 = 1,947.42 : x
  2. Step 2: Convert to fraction form
    3,519.21/4,856.55 = 1,947.42/x
  3. Step 3: Cross multiply
    3,519.21x = 4,856.55 × 1,947.42
  4. Step 4: Simplify right side
    3,519.21x = 9,457,742.60
  5. Step 5: Solve for x
    x = 9,457,742.60/3,519.21
  6. Step 6: Final answer
    x = 2,687.46

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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.