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Finding the Fourth Proportional to 5,154.94, 7,113.78 and 2,916.82

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Solution

The fourth proportional to 5,154.94, 7,113.78 and 2,916.82 is: 4,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.94 : 7,113.78 = 2,916.82 : x
  2. Step 2: Convert to fraction form
    5,154.94/7,113.78 = 2,916.82/x
  3. Step 3: Cross multiply
    5,154.94x = 7,113.78 × 2,916.82
  4. Step 4: Simplify right side
    5,154.94x = 20,749,615.78
  5. Step 5: Solve for x
    x = 20,749,615.78/5,154.94
  6. Step 6: Final answer
    x = 4,025.19

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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.