Home / 6,767.80-9,339.50-3,783.60

Finding the Fourth Proportional to 6,767.80, 9,339.50 and 3,783.60

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Solution

The fourth proportional to 6,767.80, 9,339.50 and 3,783.60 is: 5,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,767.80 : 9,339.50 = 3,783.60 : x
  2. Step 2: Convert to fraction form
    6,767.80/9,339.50 = 3,783.60/x
  3. Step 3: Cross multiply
    6,767.80x = 9,339.50 × 3,783.60
  4. Step 4: Simplify right side
    6,767.80x = 35,336,941.66
  5. Step 5: Solve for x
    x = 35,336,941.66/6,767.80
  6. Step 6: Final answer
    x = 5,221.34

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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.