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Finding the Fourth Proportional to 2,610.77, 3,916.19 and 662.92

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Solution

The fourth proportional to 2,610.77, 3,916.19 and 662.92 is: 994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.77 : 3,916.19 = 662.92 : x
  2. Step 2: Convert to fraction form
    2,610.77/3,916.19 = 662.92/x
  3. Step 3: Cross multiply
    2,610.77x = 3,916.19 × 662.92
  4. Step 4: Simplify right side
    2,610.77x = 2,596,112.54
  5. Step 5: Solve for x
    x = 2,596,112.54/2,610.77
  6. Step 6: Final answer
    x = 994.39

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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.