Home / 4,989.75-7,480.53-2,070.15

Finding the Fourth Proportional to 4,989.75, 7,480.53 and 2,070.15

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Solution

The fourth proportional to 4,989.75, 7,480.53 and 2,070.15 is: 3,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.75 : 7,480.53 = 2,070.15 : x
  2. Step 2: Convert to fraction form
    4,989.75/7,480.53 = 2,070.15/x
  3. Step 3: Cross multiply
    4,989.75x = 7,480.53 × 2,070.15
  4. Step 4: Simplify right side
    4,989.75x = 15,485,819.18
  5. Step 5: Solve for x
    x = 15,485,819.18/4,989.75
  6. Step 6: Final answer
    x = 3,103.53

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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.