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Finding the Fourth Proportional to 5,224.78, 7,834.72 and 1,937.80

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Solution

The fourth proportional to 5,224.78, 7,834.72 and 1,937.80 is: 2,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,224.78 : 7,834.72 = 1,937.80 : x
  2. Step 2: Convert to fraction form
    5,224.78/7,834.72 = 1,937.80/x
  3. Step 3: Cross multiply
    5,224.78x = 7,834.72 × 1,937.80
  4. Step 4: Simplify right side
    5,224.78x = 15,182,120.42
  5. Step 5: Solve for x
    x = 15,182,120.42/5,224.78
  6. Step 6: Final answer
    x = 2,905.79

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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.