Home / 4,145.20-6,218.90-1,804.20

Finding the Fourth Proportional to 4,145.20, 6,218.90 and 1,804.20

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Solution

The fourth proportional to 4,145.20, 6,218.90 and 1,804.20 is: 2,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.20 : 6,218.90 = 1,804.20 : x
  2. Step 2: Convert to fraction form
    4,145.20/6,218.90 = 1,804.20/x
  3. Step 3: Cross multiply
    4,145.20x = 6,218.90 × 1,804.20
  4. Step 4: Simplify right side
    4,145.20x = 11,220,139.38
  5. Step 5: Solve for x
    x = 11,220,139.38/4,145.20
  6. Step 6: Final answer
    x = 2,706.78

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1.5x scale

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.