Home / 3,099.51-4,650.39-1,125.12

Finding the Fourth Proportional to 3,099.51, 4,650.39 and 1,125.12

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Solution

The fourth proportional to 3,099.51, 4,650.39 and 1,125.12 is: 1,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.51 : 4,650.39 = 1,125.12 : x
  2. Step 2: Convert to fraction form
    3,099.51/4,650.39 = 1,125.12/x
  3. Step 3: Cross multiply
    3,099.51x = 4,650.39 × 1,125.12
  4. Step 4: Simplify right side
    3,099.51x = 5,232,246.80
  5. Step 5: Solve for x
    x = 5,232,246.80/3,099.51
  6. Step 6: Final answer
    x = 1,688.09

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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.