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Finding the Fourth Proportional to 7,272.66, 10,034.73 and 4,287.39

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Solution

The fourth proportional to 7,272.66, 10,034.73 and 4,287.39 is: 5,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.66 : 10,034.73 = 4,287.39 : x
  2. Step 2: Convert to fraction form
    7,272.66/10,034.73 = 4,287.39/x
  3. Step 3: Cross multiply
    7,272.66x = 10,034.73 × 4,287.39
  4. Step 4: Simplify right side
    7,272.66x = 43,022,801.05
  5. Step 5: Solve for x
    x = 43,022,801.05/7,272.66
  6. Step 6: Final answer
    x = 5,915.69

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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.