Home / 3,711.57-5,564.71-1,861.35

Finding the Fourth Proportional to 3,711.57, 5,564.71 and 1,861.35

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Solution

The fourth proportional to 3,711.57, 5,564.71 and 1,861.35 is: 2,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.57 : 5,564.71 = 1,861.35 : x
  2. Step 2: Convert to fraction form
    3,711.57/5,564.71 = 1,861.35/x
  3. Step 3: Cross multiply
    3,711.57x = 5,564.71 × 1,861.35
  4. Step 4: Simplify right side
    3,711.57x = 10,357,872.96
  5. Step 5: Solve for x
    x = 10,357,872.96/3,711.57
  6. Step 6: Final answer
    x = 2,790.70

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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.