Home / 4,480.20-6,720.38-1,558.58

Finding the Fourth Proportional to 4,480.20, 6,720.38 and 1,558.58

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Solution

The fourth proportional to 4,480.20, 6,720.38 and 1,558.58 is: 2,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.20 : 6,720.38 = 1,558.58 : x
  2. Step 2: Convert to fraction form
    4,480.20/6,720.38 = 1,558.58/x
  3. Step 3: Cross multiply
    4,480.20x = 6,720.38 × 1,558.58
  4. Step 4: Simplify right side
    4,480.20x = 10,474,249.86
  5. Step 5: Solve for x
    x = 10,474,249.86/4,480.20
  6. Step 6: Final answer
    x = 2,337.90

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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.