Home / 3,639.66-5,018.75-2,458.68

Finding the Fourth Proportional to 3,639.66, 5,018.75 and 2,458.68

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Solution

The fourth proportional to 3,639.66, 5,018.75 and 2,458.68 is: 3,390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.66 : 5,018.75 = 2,458.68 : x
  2. Step 2: Convert to fraction form
    3,639.66/5,018.75 = 2,458.68/x
  3. Step 3: Cross multiply
    3,639.66x = 5,018.75 × 2,458.68
  4. Step 4: Simplify right side
    3,639.66x = 12,339,500.25
  5. Step 5: Solve for x
    x = 12,339,500.25/3,639.66
  6. Step 6: Final answer
    x = 3,390.29

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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.