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Finding the Fourth Proportional to 1,872.41, 2,803.17 and 1,090.02

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Solution

The fourth proportional to 1,872.41, 2,803.17 and 1,090.02 is: 1,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.41 : 2,803.17 = 1,090.02 : x
  2. Step 2: Convert to fraction form
    1,872.41/2,803.17 = 1,090.02/x
  3. Step 3: Cross multiply
    1,872.41x = 2,803.17 × 1,090.02
  4. Step 4: Simplify right side
    1,872.41x = 3,055,511.36
  5. Step 5: Solve for x
    x = 3,055,511.36/1,872.41
  6. Step 6: Final answer
    x = 1,631.86

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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.