Home / 2,720.35-4,080.53-1,333.90

Finding the Fourth Proportional to 2,720.35, 4,080.53 and 1,333.90

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Solution

The fourth proportional to 2,720.35, 4,080.53 and 1,333.90 is: 2,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.35 : 4,080.53 = 1,333.90 : x
  2. Step 2: Convert to fraction form
    2,720.35/4,080.53 = 1,333.90/x
  3. Step 3: Cross multiply
    2,720.35x = 4,080.53 × 1,333.90
  4. Step 4: Simplify right side
    2,720.35x = 5,443,012.30
  5. Step 5: Solve for x
    x = 5,443,012.30/2,720.35
  6. Step 6: Final answer
    x = 2,000.85

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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.