Home / 2,011.80-3,015.48-1,037.96

Finding the Fourth Proportional to 2,011.80, 3,015.48 and 1,037.96

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Solution

The fourth proportional to 2,011.80, 3,015.48 and 1,037.96 is: 1,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.80 : 3,015.48 = 1,037.96 : x
  2. Step 2: Convert to fraction form
    2,011.80/3,015.48 = 1,037.96/x
  3. Step 3: Cross multiply
    2,011.80x = 3,015.48 × 1,037.96
  4. Step 4: Simplify right side
    2,011.80x = 3,129,947.62
  5. Step 5: Solve for x
    x = 3,129,947.62/2,011.80
  6. Step 6: Final answer
    x = 1,555.79

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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.