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Finding the Fourth Proportional to 2,916.92, 4,027.20 and 1,798.90

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Solution

The fourth proportional to 2,916.92, 4,027.20 and 1,798.90 is: 2,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.92 : 4,027.20 = 1,798.90 : x
  2. Step 2: Convert to fraction form
    2,916.92/4,027.20 = 1,798.90/x
  3. Step 3: Cross multiply
    2,916.92x = 4,027.20 × 1,798.90
  4. Step 4: Simplify right side
    2,916.92x = 7,244,530.08
  5. Step 5: Solve for x
    x = 7,244,530.08/2,916.92
  6. Step 6: Final answer
    x = 2,483.62

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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.