Home / 4,178.13-6,267.90-1,405.06

Finding the Fourth Proportional to 4,178.13, 6,267.90 and 1,405.06

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Solution

The fourth proportional to 4,178.13, 6,267.90 and 1,405.06 is: 2,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.13 : 6,267.90 = 1,405.06 : x
  2. Step 2: Convert to fraction form
    4,178.13/6,267.90 = 1,405.06/x
  3. Step 3: Cross multiply
    4,178.13x = 6,267.90 × 1,405.06
  4. Step 4: Simplify right side
    4,178.13x = 8,806,775.57
  5. Step 5: Solve for x
    x = 8,806,775.57/4,178.13
  6. Step 6: Final answer
    x = 2,107.83

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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.