Home / 2,607.15-3,911.22-1,126.37

Finding the Fourth Proportional to 2,607.15, 3,911.22 and 1,126.37

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Solution

The fourth proportional to 2,607.15, 3,911.22 and 1,126.37 is: 1,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.15 : 3,911.22 = 1,126.37 : x
  2. Step 2: Convert to fraction form
    2,607.15/3,911.22 = 1,126.37/x
  3. Step 3: Cross multiply
    2,607.15x = 3,911.22 × 1,126.37
  4. Step 4: Simplify right side
    2,607.15x = 4,405,480.87
  5. Step 5: Solve for x
    x = 4,405,480.87/2,607.15
  6. Step 6: Final answer
    x = 1,689.77

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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.