Home / 1,908.50-2,860.30-1,660.67

Finding the Fourth Proportional to 1,908.50, 2,860.30 and 1,660.67

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Solution

The fourth proportional to 1,908.50, 2,860.30 and 1,660.67 is: 2,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.50 : 2,860.30 = 1,660.67 : x
  2. Step 2: Convert to fraction form
    1,908.50/2,860.30 = 1,660.67/x
  3. Step 3: Cross multiply
    1,908.50x = 2,860.30 × 1,660.67
  4. Step 4: Simplify right side
    1,908.50x = 4,750,003.56
  5. Step 5: Solve for x
    x = 4,750,003.56/1,908.50
  6. Step 6: Final answer
    x = 2,488.87

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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.