Home / 5,274.72-7,278.93-2,916.81

Finding the Fourth Proportional to 5,274.72, 7,278.93 and 2,916.81

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Solution

The fourth proportional to 5,274.72, 7,278.93 and 2,916.81 is: 4,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.72 : 7,278.93 = 2,916.81 : x
  2. Step 2: Convert to fraction form
    5,274.72/7,278.93 = 2,916.81/x
  3. Step 3: Cross multiply
    5,274.72x = 7,278.93 × 2,916.81
  4. Step 4: Simplify right side
    5,274.72x = 21,231,255.81
  5. Step 5: Solve for x
    x = 21,231,255.81/5,274.72
  6. Step 6: Final answer
    x = 4,025.10

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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.