Home / 3,639.49-5,018.52-2,458.51

Finding the Fourth Proportional to 3,639.49, 5,018.52 and 2,458.51

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Solution

The fourth proportional to 3,639.49, 5,018.52 and 2,458.51 is: 3,390.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.49 : 5,018.52 = 2,458.51 : x
  2. Step 2: Convert to fraction form
    3,639.49/5,018.52 = 2,458.51/x
  3. Step 3: Cross multiply
    3,639.49x = 5,018.52 × 2,458.51
  4. Step 4: Simplify right side
    3,639.49x = 12,338,044.22
  5. Step 5: Solve for x
    x = 12,338,044.22/3,639.49
  6. Step 6: Final answer
    x = 3,390.05

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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.