Home / 3,886.51-5,363.92-2,208.60

Finding the Fourth Proportional to 3,886.51, 5,363.92 and 2,208.60

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Solution

The fourth proportional to 3,886.51, 5,363.92 and 2,208.60 is: 3,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.51 : 5,363.92 = 2,208.60 : x
  2. Step 2: Convert to fraction form
    3,886.51/5,363.92 = 2,208.60/x
  3. Step 3: Cross multiply
    3,886.51x = 5,363.92 × 2,208.60
  4. Step 4: Simplify right side
    3,886.51x = 11,846,753.71
  5. Step 5: Solve for x
    x = 11,846,753.71/3,886.51
  6. Step 6: Final answer
    x = 3,048.17

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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.