Home / 5,406.16-8,084.53-3,930.34

Finding the Fourth Proportional to 5,406.16, 8,084.53 and 3,930.34

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Solution

The fourth proportional to 5,406.16, 8,084.53 and 3,930.34 is: 5,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.16 : 8,084.53 = 3,930.34 : x
  2. Step 2: Convert to fraction form
    5,406.16/8,084.53 = 3,930.34/x
  3. Step 3: Cross multiply
    5,406.16x = 8,084.53 × 3,930.34
  4. Step 4: Simplify right side
    5,406.16x = 31,774,951.64
  5. Step 5: Solve for x
    x = 31,774,951.64/5,406.16
  6. Step 6: Final answer
    x = 5,877.55

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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.