Home / 4,179.13-6,269.01-1,405.81

Finding the Fourth Proportional to 4,179.13, 6,269.01 and 1,405.81

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Solution

The fourth proportional to 4,179.13, 6,269.01 and 1,405.81 is: 2,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.13 : 6,269.01 = 1,405.81 : x
  2. Step 2: Convert to fraction form
    4,179.13/6,269.01 = 1,405.81/x
  3. Step 3: Cross multiply
    4,179.13x = 6,269.01 × 1,405.81
  4. Step 4: Simplify right side
    4,179.13x = 8,813,036.95
  5. Step 5: Solve for x
    x = 8,813,036.95/4,179.13
  6. Step 6: Final answer
    x = 2,108.82

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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.