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Finding the Fourth Proportional to 2,037.78, 3,056.85 and 651.24

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Solution

The fourth proportional to 2,037.78, 3,056.85 and 651.24 is: 976.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.78 : 3,056.85 = 651.24 : x
  2. Step 2: Convert to fraction form
    2,037.78/3,056.85 = 651.24/x
  3. Step 3: Cross multiply
    2,037.78x = 3,056.85 × 651.24
  4. Step 4: Simplify right side
    2,037.78x = 1,990,742.99
  5. Step 5: Solve for x
    x = 1,990,742.99/2,037.78
  6. Step 6: Final answer
    x = 976.92

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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.