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Finding the Fourth Proportional to 2,666.93, 3,994.92 and 1,693.71

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Solution

The fourth proportional to 2,666.93, 3,994.92 and 1,693.71 is: 2,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.93 : 3,994.92 = 1,693.71 : x
  2. Step 2: Convert to fraction form
    2,666.93/3,994.92 = 1,693.71/x
  3. Step 3: Cross multiply
    2,666.93x = 3,994.92 × 1,693.71
  4. Step 4: Simplify right side
    2,666.93x = 6,766,235.95
  5. Step 5: Solve for x
    x = 6,766,235.95/2,666.93
  6. Step 6: Final answer
    x = 2,537.09

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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.