Home / 2,936.72-4,405.08-1,206.80

Finding the Fourth Proportional to 2,936.72, 4,405.08 and 1,206.80

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Solution

The fourth proportional to 2,936.72, 4,405.08 and 1,206.80 is: 1,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.72 : 4,405.08 = 1,206.80 : x
  2. Step 2: Convert to fraction form
    2,936.72/4,405.08 = 1,206.80/x
  3. Step 3: Cross multiply
    2,936.72x = 4,405.08 × 1,206.80
  4. Step 4: Simplify right side
    2,936.72x = 5,316,050.54
  5. Step 5: Solve for x
    x = 5,316,050.54/2,936.72
  6. Step 6: Final answer
    x = 1,810.20

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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.