Home / 3,889.11-5,366.79-2,210.48

Finding the Fourth Proportional to 3,889.11, 5,366.79 and 2,210.48

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Solution

The fourth proportional to 3,889.11, 5,366.79 and 2,210.48 is: 3,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.11 : 5,366.79 = 2,210.48 : x
  2. Step 2: Convert to fraction form
    3,889.11/5,366.79 = 2,210.48/x
  3. Step 3: Cross multiply
    3,889.11x = 5,366.79 × 2,210.48
  4. Step 4: Simplify right side
    3,889.11x = 11,863,155.13
  5. Step 5: Solve for x
    x = 11,863,155.13/3,889.11
  6. Step 6: Final answer
    x = 3,050.35

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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.