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Finding the Fourth Proportional to 1,899.19, 2,850.05 and 730.16

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Solution

The fourth proportional to 1,899.19, 2,850.05 and 730.16 is: 1,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.19 : 2,850.05 = 730.16 : x
  2. Step 2: Convert to fraction form
    1,899.19/2,850.05 = 730.16/x
  3. Step 3: Cross multiply
    1,899.19x = 2,850.05 × 730.16
  4. Step 4: Simplify right side
    1,899.19x = 2,080,974.61
  5. Step 5: Solve for x
    x = 2,080,974.61/1,899.19
  6. Step 6: Final answer
    x = 1,095.72

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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.