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Finding the Fourth Proportional to 5,244.78, 7,245.75 and 3,916.19

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Solution

The fourth proportional to 5,244.78, 7,245.75 and 3,916.19 is: 5,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.78 : 7,245.75 = 3,916.19 : x
  2. Step 2: Convert to fraction form
    5,244.78/7,245.75 = 3,916.19/x
  3. Step 3: Cross multiply
    5,244.78x = 7,245.75 × 3,916.19
  4. Step 4: Simplify right side
    5,244.78x = 28,375,697.46
  5. Step 5: Solve for x
    x = 28,375,697.46/5,244.78
  6. Step 6: Final answer
    x = 5,410.27

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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.