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Finding the Fourth Proportional to 2,671.56, 3,686.94 and 1,623.42

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Solution

The fourth proportional to 2,671.56, 3,686.94 and 1,623.42 is: 2,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.56 : 3,686.94 = 1,623.42 : x
  2. Step 2: Convert to fraction form
    2,671.56/3,686.94 = 1,623.42/x
  3. Step 3: Cross multiply
    2,671.56x = 3,686.94 × 1,623.42
  4. Step 4: Simplify right side
    2,671.56x = 5,985,452.13
  5. Step 5: Solve for x
    x = 5,985,452.13/2,671.56
  6. Step 6: Final answer
    x = 2,240.43

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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.