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Finding the Fourth Proportional to 2,748.03, 3,790.56 and 1,803.87

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Solution

The fourth proportional to 2,748.03, 3,790.56 and 1,803.87 is: 2,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.03 : 3,790.56 = 1,803.87 : x
  2. Step 2: Convert to fraction form
    2,748.03/3,790.56 = 1,803.87/x
  3. Step 3: Cross multiply
    2,748.03x = 3,790.56 × 1,803.87
  4. Step 4: Simplify right side
    2,748.03x = 6,837,677.47
  5. Step 5: Solve for x
    x = 6,837,677.47/2,748.03
  6. Step 6: Final answer
    x = 2,488.21

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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.