Home / 5,983.40-8,969.42-2,086.76

Finding the Fourth Proportional to 5,983.40, 8,969.42 and 2,086.76

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Solution

The fourth proportional to 5,983.40, 8,969.42 and 2,086.76 is: 3,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,983.40 : 8,969.42 = 2,086.76 : x
  2. Step 2: Convert to fraction form
    5,983.40/8,969.42 = 2,086.76/x
  3. Step 3: Cross multiply
    5,983.40x = 8,969.42 × 2,086.76
  4. Step 4: Simplify right side
    5,983.40x = 18,717,026.88
  5. Step 5: Solve for x
    x = 18,717,026.88/5,983.40
  6. Step 6: Final answer
    x = 3,128.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.