Home / 5,811.84-8,020.36-3,159.32

Finding the Fourth Proportional to 5,811.84, 8,020.36 and 3,159.32

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Solution

The fourth proportional to 5,811.84, 8,020.36 and 3,159.32 is: 4,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.84 : 8,020.36 = 3,159.32 : x
  2. Step 2: Convert to fraction form
    5,811.84/8,020.36 = 3,159.32/x
  3. Step 3: Cross multiply
    5,811.84x = 8,020.36 × 3,159.32
  4. Step 4: Simplify right side
    5,811.84x = 25,338,883.76
  5. Step 5: Solve for x
    x = 25,338,883.76/5,811.84
  6. Step 6: Final answer
    x = 4,359.87

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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.