Home / 5,918.50-8,167.15-3,398.84

Finding the Fourth Proportional to 5,918.50, 8,167.15 and 3,398.84

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Solution

The fourth proportional to 5,918.50, 8,167.15 and 3,398.84 is: 4,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.50 : 8,167.15 = 3,398.84 : x
  2. Step 2: Convert to fraction form
    5,918.50/8,167.15 = 3,398.84/x
  3. Step 3: Cross multiply
    5,918.50x = 8,167.15 × 3,398.84
  4. Step 4: Simplify right side
    5,918.50x = 27,758,856.97
  5. Step 5: Solve for x
    x = 27,758,856.97/5,918.50
  6. Step 6: Final answer
    x = 4,690.18

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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.