Home / 2,947.32-4,418.21-998.19

Finding the Fourth Proportional to 2,947.32, 4,418.21 and 998.19

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Solution

The fourth proportional to 2,947.32, 4,418.21 and 998.19 is: 1,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.32 : 4,418.21 = 998.19 : x
  2. Step 2: Convert to fraction form
    2,947.32/4,418.21 = 998.19/x
  3. Step 3: Cross multiply
    2,947.32x = 4,418.21 × 998.19
  4. Step 4: Simplify right side
    2,947.32x = 4,410,215.54
  5. Step 5: Solve for x
    x = 4,410,215.54/2,947.32
  6. Step 6: Final answer
    x = 1,496.35

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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.