Home / 3,186.66-4,779.86-1,455.26

Finding the Fourth Proportional to 3,186.66, 4,779.86 and 1,455.26

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Solution

The fourth proportional to 3,186.66, 4,779.86 and 1,455.26 is: 2,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.66 : 4,779.86 = 1,455.26 : x
  2. Step 2: Convert to fraction form
    3,186.66/4,779.86 = 1,455.26/x
  3. Step 3: Cross multiply
    3,186.66x = 4,779.86 × 1,455.26
  4. Step 4: Simplify right side
    3,186.66x = 6,955,939.06
  5. Step 5: Solve for x
    x = 6,955,939.06/3,186.66
  6. Step 6: Final answer
    x = 2,182.83

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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.