Home / 6,763.20-9,332.40-3,778.80

Finding the Fourth Proportional to 6,763.20, 9,332.40 and 3,778.80

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Solution

The fourth proportional to 6,763.20, 9,332.40 and 3,778.80 is: 5,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,763.20 : 9,332.40 = 3,778.80 : x
  2. Step 2: Convert to fraction form
    6,763.20/9,332.40 = 3,778.80/x
  3. Step 3: Cross multiply
    6,763.20x = 9,332.40 × 3,778.80
  4. Step 4: Simplify right side
    6,763.20x = 35,265,273.12
  5. Step 5: Solve for x
    x = 35,265,273.12/6,763.20
  6. Step 6: Final answer
    x = 5,214.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.