Home / 6,765.40-9,336.30-3,781.36

Finding the Fourth Proportional to 6,765.40, 9,336.30 and 3,781.36

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Solution

The fourth proportional to 6,765.40, 9,336.30 and 3,781.36 is: 5,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.40 : 9,336.30 = 3,781.36 : x
  2. Step 2: Convert to fraction form
    6,765.40/9,336.30 = 3,781.36/x
  3. Step 3: Cross multiply
    6,765.40x = 9,336.30 × 3,781.36
  4. Step 4: Simplify right side
    6,765.40x = 35,303,864.69
  5. Step 5: Solve for x
    x = 35,303,864.69/6,765.40
  6. Step 6: Final answer
    x = 5,218.30

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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.