Home / 5,815.37-8,025.17-3,162.78

Finding the Fourth Proportional to 5,815.37, 8,025.17 and 3,162.78

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Solution

The fourth proportional to 5,815.37, 8,025.17 and 3,162.78 is: 4,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.37 : 8,025.17 = 3,162.78 : x
  2. Step 2: Convert to fraction form
    5,815.37/8,025.17 = 3,162.78/x
  3. Step 3: Cross multiply
    5,815.37x = 8,025.17 × 3,162.78
  4. Step 4: Simplify right side
    5,815.37x = 25,381,831.36
  5. Step 5: Solve for x
    x = 25,381,831.36/5,815.37
  6. Step 6: Final answer
    x = 4,364.61

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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.