Home / 5,938.30-8,190.30-3,838.78

Finding the Fourth Proportional to 5,938.30, 8,190.30 and 3,838.78

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Solution

The fourth proportional to 5,938.30, 8,190.30 and 3,838.78 is: 5,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.30 : 8,190.30 = 3,838.78 : x
  2. Step 2: Convert to fraction form
    5,938.30/8,190.30 = 3,838.78/x
  3. Step 3: Cross multiply
    5,938.30x = 8,190.30 × 3,838.78
  4. Step 4: Simplify right side
    5,938.30x = 31,440,759.83
  5. Step 5: Solve for x
    x = 31,440,759.83/5,938.30
  6. Step 6: Final answer
    x = 5,294.57

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Double scale
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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.