Home / 3,586.68-4,947.48-2,187

Finding the Fourth Proportional to 3,586.68, 4,947.48 and 2,187

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Solution

The fourth proportional to 3,586.68, 4,947.48 and 2,187 is: 3,016.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.68 : 4,947.48 = 2,187 : x
  2. Step 2: Convert to fraction form
    3,586.68/4,947.48 = 2,187/x
  3. Step 3: Cross multiply
    3,586.68x = 4,947.48 × 2,187
  4. Step 4: Simplify right side
    3,586.68x = 10,820,138.76
  5. Step 5: Solve for x
    x = 10,820,138.76/3,586.68
  6. Step 6: Final answer
    x = 3,016.76

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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.