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Finding the Fourth Proportional to 1,900.02, 2,849.10 and 803.76

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Solution

The fourth proportional to 1,900.02, 2,849.10 and 803.76 is: 1,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.02 : 2,849.10 = 803.76 : x
  2. Step 2: Convert to fraction form
    1,900.02/2,849.10 = 803.76/x
  3. Step 3: Cross multiply
    1,900.02x = 2,849.10 × 803.76
  4. Step 4: Simplify right side
    1,900.02x = 2,289,992.62
  5. Step 5: Solve for x
    x = 2,289,992.62/1,900.02
  6. Step 6: Final answer
    x = 1,205.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.