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Finding the Fourth Proportional to 1,084.83, 1,627.21 and 304.84

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Solution

The fourth proportional to 1,084.83, 1,627.21 and 304.84 is: 457.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.83 : 1,627.21 = 304.84 : x
  2. Step 2: Convert to fraction form
    1,084.83/1,627.21 = 304.84/x
  3. Step 3: Cross multiply
    1,084.83x = 1,627.21 × 304.84
  4. Step 4: Simplify right side
    1,084.83x = 496,038.70
  5. Step 5: Solve for x
    x = 496,038.70/1,084.83
  6. Step 6: Final answer
    x = 457.25

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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.