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Finding the Fourth Proportional to 2,638.59, 3,956.55 and 882.99

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Solution

The fourth proportional to 2,638.59, 3,956.55 and 882.99 is: 1,324.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.59 : 3,956.55 = 882.99 : x
  2. Step 2: Convert to fraction form
    2,638.59/3,956.55 = 882.99/x
  3. Step 3: Cross multiply
    2,638.59x = 3,956.55 × 882.99
  4. Step 4: Simplify right side
    2,638.59x = 3,493,594.08
  5. Step 5: Solve for x
    x = 3,493,594.08/2,638.59
  6. Step 6: Final answer
    x = 1,324.04

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1.5x scale

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.