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Finding the Fourth Proportional to 2,673.80, 3,689.85 and 1,494.91

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Solution

The fourth proportional to 2,673.80, 3,689.85 and 1,494.91 is: 2,062.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.80 : 3,689.85 = 1,494.91 : x
  2. Step 2: Convert to fraction form
    2,673.80/3,689.85 = 1,494.91/x
  3. Step 3: Cross multiply
    2,673.80x = 3,689.85 × 1,494.91
  4. Step 4: Simplify right side
    2,673.80x = 5,515,993.66
  5. Step 5: Solve for x
    x = 5,515,993.66/2,673.80
  6. Step 6: Final answer
    x = 2,062.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.