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Finding the Fourth Proportional to 2,699.78, 4,046.70 and 1,056.02

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Solution

The fourth proportional to 2,699.78, 4,046.70 and 1,056.02 is: 1,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.78 : 4,046.70 = 1,056.02 : x
  2. Step 2: Convert to fraction form
    2,699.78/4,046.70 = 1,056.02/x
  3. Step 3: Cross multiply
    2,699.78x = 4,046.70 × 1,056.02
  4. Step 4: Simplify right side
    2,699.78x = 4,273,396.13
  5. Step 5: Solve for x
    x = 4,273,396.13/2,699.78
  6. Step 6: Final answer
    x = 1,582.87

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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.