Home / 2,606.86-3,911.19-1,147.06

Finding the Fourth Proportional to 2,606.86, 3,911.19 and 1,147.06

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Solution

The fourth proportional to 2,606.86, 3,911.19 and 1,147.06 is: 1,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606.86 : 3,911.19 = 1,147.06 : x
  2. Step 2: Convert to fraction form
    2,606.86/3,911.19 = 1,147.06/x
  3. Step 3: Cross multiply
    2,606.86x = 3,911.19 × 1,147.06
  4. Step 4: Simplify right side
    2,606.86x = 4,486,369.60
  5. Step 5: Solve for x
    x = 4,486,369.60/2,606.86
  6. Step 6: Final answer
    x = 1,720.99

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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.