Home / 3,889.16-5,366.66-2,712.76

Finding the Fourth Proportional to 3,889.16, 5,366.66 and 2,712.76

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Solution

The fourth proportional to 3,889.16, 5,366.66 and 2,712.76 is: 3,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.16 : 5,366.66 = 2,712.76 : x
  2. Step 2: Convert to fraction form
    3,889.16/5,366.66 = 2,712.76/x
  3. Step 3: Cross multiply
    3,889.16x = 5,366.66 × 2,712.76
  4. Step 4: Simplify right side
    3,889.16x = 14,558,460.58
  5. Step 5: Solve for x
    x = 14,558,460.58/3,889.16
  6. Step 6: Final answer
    x = 3,743.34

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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.