Home / 6,615.35-9,128.66-3,631.17

Finding the Fourth Proportional to 6,615.35, 9,128.66 and 3,631.17

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Solution

The fourth proportional to 6,615.35, 9,128.66 and 3,631.17 is: 5,010.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.35 : 9,128.66 = 3,631.17 : x
  2. Step 2: Convert to fraction form
    6,615.35/9,128.66 = 3,631.17/x
  3. Step 3: Cross multiply
    6,615.35x = 9,128.66 × 3,631.17
  4. Step 4: Simplify right side
    6,615.35x = 33,147,698.18
  5. Step 5: Solve for x
    x = 33,147,698.18/6,615.35
  6. Step 6: Final answer
    x = 5,010.73

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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.