Home / 4,080.50-6,120.87-1,002.50

Finding the Fourth Proportional to 4,080.50, 6,120.87 and 1,002.50

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Solution

The fourth proportional to 4,080.50, 6,120.87 and 1,002.50 is: 1,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.50 : 6,120.87 = 1,002.50 : x
  2. Step 2: Convert to fraction form
    4,080.50/6,120.87 = 1,002.50/x
  3. Step 3: Cross multiply
    4,080.50x = 6,120.87 × 1,002.50
  4. Step 4: Simplify right side
    4,080.50x = 6,136,172.18
  5. Step 5: Solve for x
    x = 6,136,172.18/4,080.50
  6. Step 6: Final answer
    x = 1,503.78

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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.