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Finding the Fourth Proportional to 6,696.80, 9,240.16 and 4,044.80

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Solution

The fourth proportional to 6,696.80, 9,240.16 and 4,044.80 is: 5,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,696.80 : 9,240.16 = 4,044.80 : x
  2. Step 2: Convert to fraction form
    6,696.80/9,240.16 = 4,044.80/x
  3. Step 3: Cross multiply
    6,696.80x = 9,240.16 × 4,044.80
  4. Step 4: Simplify right side
    6,696.80x = 37,374,599.17
  5. Step 5: Solve for x
    x = 37,374,599.17/6,696.80
  6. Step 6: Final answer
    x = 5,580.96

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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.