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Finding the Fourth Proportional to 5,918.92, 8,168.35 and 3,400.99

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Solution

The fourth proportional to 5,918.92, 8,168.35 and 3,400.99 is: 4,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.92 : 8,168.35 = 3,400.99 : x
  2. Step 2: Convert to fraction form
    5,918.92/8,168.35 = 3,400.99/x
  3. Step 3: Cross multiply
    5,918.92x = 8,168.35 × 3,400.99
  4. Step 4: Simplify right side
    5,918.92x = 27,780,476.67
  5. Step 5: Solve for x
    x = 27,780,476.67/5,918.92
  6. Step 6: Final answer
    x = 4,693.50

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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.