Home / 4,291.86-6,437.85-1,213.86

Finding the Fourth Proportional to 4,291.86, 6,437.85 and 1,213.86

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Solution

The fourth proportional to 4,291.86, 6,437.85 and 1,213.86 is: 1,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.86 : 6,437.85 = 1,213.86 : x
  2. Step 2: Convert to fraction form
    4,291.86/6,437.85 = 1,213.86/x
  3. Step 3: Cross multiply
    4,291.86x = 6,437.85 × 1,213.86
  4. Step 4: Simplify right side
    4,291.86x = 7,814,648.60
  5. Step 5: Solve for x
    x = 7,814,648.60/4,291.86
  6. Step 6: Final answer
    x = 1,820.81

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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.