Home / 5,815.36-8,025.21-3,162.76

Finding the Fourth Proportional to 5,815.36, 8,025.21 and 3,162.76

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Solution

The fourth proportional to 5,815.36, 8,025.21 and 3,162.76 is: 4,364.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.36 : 8,025.21 = 3,162.76 : x
  2. Step 2: Convert to fraction form
    5,815.36/8,025.21 = 3,162.76/x
  3. Step 3: Cross multiply
    5,815.36x = 8,025.21 × 3,162.76
  4. Step 4: Simplify right side
    5,815.36x = 25,381,813.18
  5. Step 5: Solve for x
    x = 25,381,813.18/5,815.36
  6. Step 6: Final answer
    x = 4,364.62

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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.