Home / 3,555.90-5,329.53-2,385.86

Finding the Fourth Proportional to 3,555.90, 5,329.53 and 2,385.86

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Solution

The fourth proportional to 3,555.90, 5,329.53 and 2,385.86 is: 3,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.90 : 5,329.53 = 2,385.86 : x
  2. Step 2: Convert to fraction form
    3,555.90/5,329.53 = 2,385.86/x
  3. Step 3: Cross multiply
    3,555.90x = 5,329.53 × 2,385.86
  4. Step 4: Simplify right side
    3,555.90x = 12,715,485.80
  5. Step 5: Solve for x
    x = 12,715,485.80/3,555.90
  6. Step 6: Final answer
    x = 3,575.88

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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.