Home / 3,099.80-4,650.17-1,125.58

Finding the Fourth Proportional to 3,099.80, 4,650.17 and 1,125.58

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Solution

The fourth proportional to 3,099.80, 4,650.17 and 1,125.58 is: 1,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.80 : 4,650.17 = 1,125.58 : x
  2. Step 2: Convert to fraction form
    3,099.80/4,650.17 = 1,125.58/x
  3. Step 3: Cross multiply
    3,099.80x = 4,650.17 × 1,125.58
  4. Step 4: Simplify right side
    3,099.80x = 5,234,138.35
  5. Step 5: Solve for x
    x = 5,234,138.35/3,099.80
  6. Step 6: Final answer
    x = 1,688.54

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1.5x scale

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.