Home / 2,275.12-3,410.26-1,299.12

Finding the Fourth Proportional to 2,275.12, 3,410.26 and 1,299.12

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Solution

The fourth proportional to 2,275.12, 3,410.26 and 1,299.12 is: 1,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.12 : 3,410.26 = 1,299.12 : x
  2. Step 2: Convert to fraction form
    2,275.12/3,410.26 = 1,299.12/x
  3. Step 3: Cross multiply
    2,275.12x = 3,410.26 × 1,299.12
  4. Step 4: Simplify right side
    2,275.12x = 4,430,336.97
  5. Step 5: Solve for x
    x = 4,430,336.97/2,275.12
  6. Step 6: Final answer
    x = 1,947.30

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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.