Home / 3,756.20-5,630.54-1,778.30

Finding the Fourth Proportional to 3,756.20, 5,630.54 and 1,778.30

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Solution

The fourth proportional to 3,756.20, 5,630.54 and 1,778.30 is: 2,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.20 : 5,630.54 = 1,778.30 : x
  2. Step 2: Convert to fraction form
    3,756.20/5,630.54 = 1,778.30/x
  3. Step 3: Cross multiply
    3,756.20x = 5,630.54 × 1,778.30
  4. Step 4: Simplify right side
    3,756.20x = 10,012,789.28
  5. Step 5: Solve for x
    x = 10,012,789.28/3,756.20
  6. Step 6: Final answer
    x = 2,665.67

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1.5x scale

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.