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Finding the Fourth Proportional to 1,102.33, 1,653.54 and 371.98

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Solution

The fourth proportional to 1,102.33, 1,653.54 and 371.98 is: 557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.33 : 1,653.54 = 371.98 : x
  2. Step 2: Convert to fraction form
    1,102.33/1,653.54 = 371.98/x
  3. Step 3: Cross multiply
    1,102.33x = 1,653.54 × 371.98
  4. Step 4: Simplify right side
    1,102.33x = 615,083.81
  5. Step 5: Solve for x
    x = 615,083.81/1,102.33
  6. Step 6: Final answer
    x = 557.99

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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.