Home / 5,386.98-8,084.79-2,790.66

Finding the Fourth Proportional to 5,386.98, 8,084.79 and 2,790.66

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Solution

The fourth proportional to 5,386.98, 8,084.79 and 2,790.66 is: 4,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.98 : 8,084.79 = 2,790.66 : x
  2. Step 2: Convert to fraction form
    5,386.98/8,084.79 = 2,790.66/x
  3. Step 3: Cross multiply
    5,386.98x = 8,084.79 × 2,790.66
  4. Step 4: Simplify right side
    5,386.98x = 22,561,900.06
  5. Step 5: Solve for x
    x = 22,561,900.06/5,386.98
  6. Step 6: Final answer
    x = 4,188.23

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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.