Home / 3,586.71-5,375.19-1,856.55

Finding the Fourth Proportional to 3,586.71, 5,375.19 and 1,856.55

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Solution

The fourth proportional to 3,586.71, 5,375.19 and 1,856.55 is: 2,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.71 : 5,375.19 = 1,856.55 : x
  2. Step 2: Convert to fraction form
    3,586.71/5,375.19 = 1,856.55/x
  3. Step 3: Cross multiply
    3,586.71x = 5,375.19 × 1,856.55
  4. Step 4: Simplify right side
    3,586.71x = 9,979,308.99
  5. Step 5: Solve for x
    x = 9,979,308.99/3,586.71
  6. Step 6: Final answer
    x = 2,782.30

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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.