Home / 6,615.09-9,128.85-3,630.93

Finding the Fourth Proportional to 6,615.09, 9,128.85 and 3,630.93

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Solution

The fourth proportional to 6,615.09, 9,128.85 and 3,630.93 is: 5,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.09 : 9,128.85 = 3,630.93 : x
  2. Step 2: Convert to fraction form
    6,615.09/9,128.85 = 3,630.93/x
  3. Step 3: Cross multiply
    6,615.09x = 9,128.85 × 3,630.93
  4. Step 4: Simplify right side
    6,615.09x = 33,146,215.33
  5. Step 5: Solve for x
    x = 33,146,215.33/6,615.09
  6. Step 6: Final answer
    x = 5,010.70

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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.