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Finding the Fourth Proportional to 7,213.56, 10,800.78 and 3,743.52

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Solution

The fourth proportional to 7,213.56, 10,800.78 and 3,743.52 is: 5,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.56 : 10,800.78 = 3,743.52 : x
  2. Step 2: Convert to fraction form
    7,213.56/10,800.78 = 3,743.52/x
  3. Step 3: Cross multiply
    7,213.56x = 10,800.78 × 3,743.52
  4. Step 4: Simplify right side
    7,213.56x = 40,432,881.40
  5. Step 5: Solve for x
    x = 40,432,881.40/7,213.56
  6. Step 6: Final answer
    x = 5,605.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.