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Finding the Fourth Proportional to 2,838.99, 3,916.53 and 1,659.54

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Solution

The fourth proportional to 2,838.99, 3,916.53 and 1,659.54 is: 2,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.99 : 3,916.53 = 1,659.54 : x
  2. Step 2: Convert to fraction form
    2,838.99/3,916.53 = 1,659.54/x
  3. Step 3: Cross multiply
    2,838.99x = 3,916.53 × 1,659.54
  4. Step 4: Simplify right side
    2,838.99x = 6,499,638.20
  5. Step 5: Solve for x
    x = 6,499,638.20/2,838.99
  6. Step 6: Final answer
    x = 2,289.42

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1.5x scale

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.