Home / 5,243.80-7,236.44-2,886.10

Finding the Fourth Proportional to 5,243.80, 7,236.44 and 2,886.10

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Solution

The fourth proportional to 5,243.80, 7,236.44 and 2,886.10 is: 3,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.80 : 7,236.44 = 2,886.10 : x
  2. Step 2: Convert to fraction form
    5,243.80/7,236.44 = 2,886.10/x
  3. Step 3: Cross multiply
    5,243.80x = 7,236.44 × 2,886.10
  4. Step 4: Simplify right side
    5,243.80x = 20,885,060.52
  5. Step 5: Solve for x
    x = 20,885,060.52/5,243.80
  6. Step 6: Final answer
    x = 3,982.81

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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.