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Finding the Fourth Proportional to 2,610.91, 3,916.41 and 663.13

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Solution

The fourth proportional to 2,610.91, 3,916.41 and 663.13 is: 994.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.91 : 3,916.41 = 663.13 : x
  2. Step 2: Convert to fraction form
    2,610.91/3,916.41 = 663.13/x
  3. Step 3: Cross multiply
    2,610.91x = 3,916.41 × 663.13
  4. Step 4: Simplify right side
    2,610.91x = 2,597,088.96
  5. Step 5: Solve for x
    x = 2,597,088.96/2,610.91
  6. Step 6: Final answer
    x = 994.71

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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.