Home / 4,163.52-6,245.90-1,389.40

Finding the Fourth Proportional to 4,163.52, 6,245.90 and 1,389.40

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Solution

The fourth proportional to 4,163.52, 6,245.90 and 1,389.40 is: 2,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,163.52 : 6,245.90 = 1,389.40 : x
  2. Step 2: Convert to fraction form
    4,163.52/6,245.90 = 1,389.40/x
  3. Step 3: Cross multiply
    4,163.52x = 6,245.90 × 1,389.40
  4. Step 4: Simplify right side
    4,163.52x = 8,678,053.46
  5. Step 5: Solve for x
    x = 8,678,053.46/4,163.52
  6. Step 6: Final answer
    x = 2,084.31

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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.