Home / 3,186.71-4,779.31-1,337.86

Finding the Fourth Proportional to 3,186.71, 4,779.31 and 1,337.86

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Solution

The fourth proportional to 3,186.71, 4,779.31 and 1,337.86 is: 2,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.71 : 4,779.31 = 1,337.86 : x
  2. Step 2: Convert to fraction form
    3,186.71/4,779.31 = 1,337.86/x
  3. Step 3: Cross multiply
    3,186.71x = 4,779.31 × 1,337.86
  4. Step 4: Simplify right side
    3,186.71x = 6,394,047.68
  5. Step 5: Solve for x
    x = 6,394,047.68/3,186.71
  6. Step 6: Final answer
    x = 2,006.47

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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.