Home / 3,119.70-4,682.38-1,660.08

Finding the Fourth Proportional to 3,119.70, 4,682.38 and 1,660.08

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Solution

The fourth proportional to 3,119.70, 4,682.38 and 1,660.08 is: 2,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.70 : 4,682.38 = 1,660.08 : x
  2. Step 2: Convert to fraction form
    3,119.70/4,682.38 = 1,660.08/x
  3. Step 3: Cross multiply
    3,119.70x = 4,682.38 × 1,660.08
  4. Step 4: Simplify right side
    3,119.70x = 7,773,125.39
  5. Step 5: Solve for x
    x = 7,773,125.39/3,119.70
  6. Step 6: Final answer
    x = 2,491.63

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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.