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Finding the Fourth Proportional to 1,094.83, 1,639.84 and 683.09

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Solution

The fourth proportional to 1,094.83, 1,639.84 and 683.09 is: 1,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.83 : 1,639.84 = 683.09 : x
  2. Step 2: Convert to fraction form
    1,094.83/1,639.84 = 683.09/x
  3. Step 3: Cross multiply
    1,094.83x = 1,639.84 × 683.09
  4. Step 4: Simplify right side
    1,094.83x = 1,120,158.31
  5. Step 5: Solve for x
    x = 1,120,158.31/1,094.83
  6. Step 6: Final answer
    x = 1,023.13

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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.