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Finding the Fourth Proportional to 5,272.05, 7,274.91 and 2,914.05

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Solution

The fourth proportional to 5,272.05, 7,274.91 and 2,914.05 is: 4,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.05 : 7,274.91 = 2,914.05 : x
  2. Step 2: Convert to fraction form
    5,272.05/7,274.91 = 2,914.05/x
  3. Step 3: Cross multiply
    5,272.05x = 7,274.91 × 2,914.05
  4. Step 4: Simplify right side
    5,272.05x = 21,199,451.49
  5. Step 5: Solve for x
    x = 21,199,451.49/5,272.05
  6. Step 6: Final answer
    x = 4,021.10

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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.