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Finding the Fourth Proportional to 2,671.96, 4,010.40 and 1,356.64

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Solution

The fourth proportional to 2,671.96, 4,010.40 and 1,356.64 is: 2,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.96 : 4,010.40 = 1,356.64 : x
  2. Step 2: Convert to fraction form
    2,671.96/4,010.40 = 1,356.64/x
  3. Step 3: Cross multiply
    2,671.96x = 4,010.40 × 1,356.64
  4. Step 4: Simplify right side
    2,671.96x = 5,440,669.06
  5. Step 5: Solve for x
    x = 5,440,669.06/2,671.96
  6. Step 6: Final answer
    x = 2,036.21

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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.