Home / 3,519.30-4,856.51-1,947.29

Finding the Fourth Proportional to 3,519.30, 4,856.51 and 1,947.29

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Solution

The fourth proportional to 3,519.30, 4,856.51 and 1,947.29 is: 2,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.30 : 4,856.51 = 1,947.29 : x
  2. Step 2: Convert to fraction form
    3,519.30/4,856.51 = 1,947.29/x
  3. Step 3: Cross multiply
    3,519.30x = 4,856.51 × 1,947.29
  4. Step 4: Simplify right side
    3,519.30x = 9,457,050.37
  5. Step 5: Solve for x
    x = 9,457,050.37/3,519.30
  6. Step 6: Final answer
    x = 2,687.20

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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.