Home / 5,918.28-8,166.95-3,398.62

Finding the Fourth Proportional to 5,918.28, 8,166.95 and 3,398.62

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Solution

The fourth proportional to 5,918.28, 8,166.95 and 3,398.62 is: 4,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.28 : 8,166.95 = 3,398.62 : x
  2. Step 2: Convert to fraction form
    5,918.28/8,166.95 = 3,398.62/x
  3. Step 3: Cross multiply
    5,918.28x = 8,166.95 × 3,398.62
  4. Step 4: Simplify right side
    5,918.28x = 27,756,336.85
  5. Step 5: Solve for x
    x = 27,756,336.85/5,918.28
  6. Step 6: Final answer
    x = 4,689.93

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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.