Home / 5,172.52-7,138.62-4,528.56

Finding the Fourth Proportional to 5,172.52, 7,138.62 and 4,528.56

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Solution

The fourth proportional to 5,172.52, 7,138.62 and 4,528.56 is: 6,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.52 : 7,138.62 = 4,528.56 : x
  2. Step 2: Convert to fraction form
    5,172.52/7,138.62 = 4,528.56/x
  3. Step 3: Cross multiply
    5,172.52x = 7,138.62 × 4,528.56
  4. Step 4: Simplify right side
    5,172.52x = 32,327,668.99
  5. Step 5: Solve for x
    x = 32,327,668.99/5,172.52
  6. Step 6: Final answer
    x = 6,249.89

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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.