Home / 3,639.10-5,025.84-2,859.10

Finding the Fourth Proportional to 3,639.10, 5,025.84 and 2,859.10

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Solution

The fourth proportional to 3,639.10, 5,025.84 and 2,859.10 is: 3,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.10 : 5,025.84 = 2,859.10 : x
  2. Step 2: Convert to fraction form
    3,639.10/5,025.84 = 2,859.10/x
  3. Step 3: Cross multiply
    3,639.10x = 5,025.84 × 2,859.10
  4. Step 4: Simplify right side
    3,639.10x = 14,369,379.14
  5. Step 5: Solve for x
    x = 14,369,379.14/3,639.10
  6. Step 6: Final answer
    x = 3,948.61

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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.