Home / 1,944.80-2,687.32-1,478.24

Finding the Fourth Proportional to 1,944.80, 2,687.32 and 1,478.24

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Solution

The fourth proportional to 1,944.80, 2,687.32 and 1,478.24 is: 2,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.80 : 2,687.32 = 1,478.24 : x
  2. Step 2: Convert to fraction form
    1,944.80/2,687.32 = 1,478.24/x
  3. Step 3: Cross multiply
    1,944.80x = 2,687.32 × 1,478.24
  4. Step 4: Simplify right side
    1,944.80x = 3,972,503.92
  5. Step 5: Solve for x
    x = 3,972,503.92/1,944.80
  6. Step 6: Final answer
    x = 2,042.63

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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.