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Finding the Fourth Proportional to 2,672.70, 3,687.03 and 1,885.02

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Solution

The fourth proportional to 2,672.70, 3,687.03 and 1,885.02 is: 2,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.70 : 3,687.03 = 1,885.02 : x
  2. Step 2: Convert to fraction form
    2,672.70/3,687.03 = 1,885.02/x
  3. Step 3: Cross multiply
    2,672.70x = 3,687.03 × 1,885.02
  4. Step 4: Simplify right side
    2,672.70x = 6,950,125.29
  5. Step 5: Solve for x
    x = 6,950,125.29/2,672.70
  6. Step 6: Final answer
    x = 2,600.41

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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.