Home / 3,712.57-5,561.73-1,861.52

Finding the Fourth Proportional to 3,712.57, 5,561.73 and 1,861.52

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Solution

The fourth proportional to 3,712.57, 5,561.73 and 1,861.52 is: 2,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.57 : 5,561.73 = 1,861.52 : x
  2. Step 2: Convert to fraction form
    3,712.57/5,561.73 = 1,861.52/x
  3. Step 3: Cross multiply
    3,712.57x = 5,561.73 × 1,861.52
  4. Step 4: Simplify right side
    3,712.57x = 10,353,243.82
  5. Step 5: Solve for x
    x = 10,353,243.82/3,712.57
  6. Step 6: Final answer
    x = 2,788.70

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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.