Home / 5,163.10-7,124.28-3,039.70

Finding the Fourth Proportional to 5,163.10, 7,124.28 and 3,039.70

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Solution

The fourth proportional to 5,163.10, 7,124.28 and 3,039.70 is: 4,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.10 : 7,124.28 = 3,039.70 : x
  2. Step 2: Convert to fraction form
    5,163.10/7,124.28 = 3,039.70/x
  3. Step 3: Cross multiply
    5,163.10x = 7,124.28 × 3,039.70
  4. Step 4: Simplify right side
    5,163.10x = 21,655,673.92
  5. Step 5: Solve for x
    x = 21,655,673.92/5,163.10
  6. Step 6: Final answer
    x = 4,194.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.