Home / 6,615.06-9,128.49-3,630.90

Finding the Fourth Proportional to 6,615.06, 9,128.49 and 3,630.90

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Solution

The fourth proportional to 6,615.06, 9,128.49 and 3,630.90 is: 5,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.06 : 9,128.49 = 3,630.90 : x
  2. Step 2: Convert to fraction form
    6,615.06/9,128.49 = 3,630.90/x
  3. Step 3: Cross multiply
    6,615.06x = 9,128.49 × 3,630.90
  4. Step 4: Simplify right side
    6,615.06x = 33,144,634.34
  5. Step 5: Solve for x
    x = 33,144,634.34/6,615.06
  6. Step 6: Final answer
    x = 5,010.48

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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.