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Finding the Fourth Proportional to 2,663.51, 3,672.76 and 1,813.32

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Solution

The fourth proportional to 2,663.51, 3,672.76 and 1,813.32 is: 2,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.51 : 3,672.76 = 1,813.32 : x
  2. Step 2: Convert to fraction form
    2,663.51/3,672.76 = 1,813.32/x
  3. Step 3: Cross multiply
    2,663.51x = 3,672.76 × 1,813.32
  4. Step 4: Simplify right side
    2,663.51x = 6,659,861.73
  5. Step 5: Solve for x
    x = 6,659,861.73/2,663.51
  6. Step 6: Final answer
    x = 2,500.41

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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.