Home / 5,114.40-7,662.15-2,916.60

Finding the Fourth Proportional to 5,114.40, 7,662.15 and 2,916.60

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Solution

The fourth proportional to 5,114.40, 7,662.15 and 2,916.60 is: 4,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.40 : 7,662.15 = 2,916.60 : x
  2. Step 2: Convert to fraction form
    5,114.40/7,662.15 = 2,916.60/x
  3. Step 3: Cross multiply
    5,114.40x = 7,662.15 × 2,916.60
  4. Step 4: Simplify right side
    5,114.40x = 22,347,426.69
  5. Step 5: Solve for x
    x = 22,347,426.69/5,114.40
  6. Step 6: Final answer
    x = 4,369.51

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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.