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Finding the Fourth Proportional to 5,274.27, 7,278.39 and 2,916.42

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Solution

The fourth proportional to 5,274.27, 7,278.39 and 2,916.42 is: 4,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.27 : 7,278.39 = 2,916.42 : x
  2. Step 2: Convert to fraction form
    5,274.27/7,278.39 = 2,916.42/x
  3. Step 3: Cross multiply
    5,274.27x = 7,278.39 × 2,916.42
  4. Step 4: Simplify right side
    5,274.27x = 21,226,842.16
  5. Step 5: Solve for x
    x = 21,226,842.16/5,274.27
  6. Step 6: Final answer
    x = 4,024.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.