Home / 3,519.10-4,856.35-1,947.19

Finding the Fourth Proportional to 3,519.10, 4,856.35 and 1,947.19

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Solution

The fourth proportional to 3,519.10, 4,856.35 and 1,947.19 is: 2,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.10 : 4,856.35 = 1,947.19 : x
  2. Step 2: Convert to fraction form
    3,519.10/4,856.35 = 1,947.19/x
  3. Step 3: Cross multiply
    3,519.10x = 4,856.35 × 1,947.19
  4. Step 4: Simplify right side
    3,519.10x = 9,456,219.15
  5. Step 5: Solve for x
    x = 9,456,219.15/3,519.10
  6. Step 6: Final answer
    x = 2,687.11

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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.