Home / 3,747.50-5,621.52-1,439

Finding the Fourth Proportional to 3,747.50, 5,621.52 and 1,439

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Solution

The fourth proportional to 3,747.50, 5,621.52 and 1,439 is: 2,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.50 : 5,621.52 = 1,439 : x
  2. Step 2: Convert to fraction form
    3,747.50/5,621.52 = 1,439/x
  3. Step 3: Cross multiply
    3,747.50x = 5,621.52 × 1,439
  4. Step 4: Simplify right side
    3,747.50x = 8,089,370.88
  5. Step 5: Solve for x
    x = 8,089,370.88/3,747.50
  6. Step 6: Final answer
    x = 2,158.60

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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.