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Finding the Fourth Proportional to 1,094.04, 1,638.96 and 545.58

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Solution

The fourth proportional to 1,094.04, 1,638.96 and 545.58 is: 817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.04 : 1,638.96 = 545.58 : x
  2. Step 2: Convert to fraction form
    1,094.04/1,638.96 = 545.58/x
  3. Step 3: Cross multiply
    1,094.04x = 1,638.96 × 545.58
  4. Step 4: Simplify right side
    1,094.04x = 894,183.80
  5. Step 5: Solve for x
    x = 894,183.80/1,094.04
  6. Step 6: Final answer
    x = 817.32

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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.