Home / 3,888.82-5,366.38-2,210.02

Finding the Fourth Proportional to 3,888.82, 5,366.38 and 2,210.02

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Solution

The fourth proportional to 3,888.82, 5,366.38 and 2,210.02 is: 3,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.82 : 5,366.38 = 2,210.02 : x
  2. Step 2: Convert to fraction form
    3,888.82/5,366.38 = 2,210.02/x
  3. Step 3: Cross multiply
    3,888.82x = 5,366.38 × 2,210.02
  4. Step 4: Simplify right side
    3,888.82x = 11,859,807.13
  5. Step 5: Solve for x
    x = 11,859,807.13/3,888.82
  6. Step 6: Final answer
    x = 3,049.72

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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.