Home / 3,558.78-5,337.99-1,478.25

Finding the Fourth Proportional to 3,558.78, 5,337.99 and 1,478.25

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Solution

The fourth proportional to 3,558.78, 5,337.99 and 1,478.25 is: 2,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.78 : 5,337.99 = 1,478.25 : x
  2. Step 2: Convert to fraction form
    3,558.78/5,337.99 = 1,478.25/x
  3. Step 3: Cross multiply
    3,558.78x = 5,337.99 × 1,478.25
  4. Step 4: Simplify right side
    3,558.78x = 7,890,883.72
  5. Step 5: Solve for x
    x = 7,890,883.72/3,558.78
  6. Step 6: Final answer
    x = 2,217.30

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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.