Home / 3,731.81-5,586.90-2,811.24

Finding the Fourth Proportional to 3,731.81, 5,586.90 and 2,811.24

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Solution

The fourth proportional to 3,731.81, 5,586.90 and 2,811.24 is: 4,208.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.81 : 5,586.90 = 2,811.24 : x
  2. Step 2: Convert to fraction form
    3,731.81/5,586.90 = 2,811.24/x
  3. Step 3: Cross multiply
    3,731.81x = 5,586.90 × 2,811.24
  4. Step 4: Simplify right side
    3,731.81x = 15,706,116.76
  5. Step 5: Solve for x
    x = 15,706,116.76/3,731.81
  6. Step 6: Final answer
    x = 4,208.72

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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.