Home / 5,638.53-8,458.32-1,478.49

Finding the Fourth Proportional to 5,638.53, 8,458.32 and 1,478.49

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Solution

The fourth proportional to 5,638.53, 8,458.32 and 1,478.49 is: 2,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.53 : 8,458.32 = 1,478.49 : x
  2. Step 2: Convert to fraction form
    5,638.53/8,458.32 = 1,478.49/x
  3. Step 3: Cross multiply
    5,638.53x = 8,458.32 × 1,478.49
  4. Step 4: Simplify right side
    5,638.53x = 12,505,541.54
  5. Step 5: Solve for x
    x = 12,505,541.54/5,638.53
  6. Step 6: Final answer
    x = 2,217.87

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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.