Home / 5,243.62-7,236.64-2,886.20

Finding the Fourth Proportional to 5,243.62, 7,236.64 and 2,886.20

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Solution

The fourth proportional to 5,243.62, 7,236.64 and 2,886.20 is: 3,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.62 : 7,236.64 = 2,886.20 : x
  2. Step 2: Convert to fraction form
    5,243.62/7,236.64 = 2,886.20/x
  3. Step 3: Cross multiply
    5,243.62x = 7,236.64 × 2,886.20
  4. Step 4: Simplify right side
    5,243.62x = 20,886,390.37
  5. Step 5: Solve for x
    x = 20,886,390.37/5,243.62
  6. Step 6: Final answer
    x = 3,983.20

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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.