Home / 4,087.86-6,131.79-1,314.77

Finding the Fourth Proportional to 4,087.86, 6,131.79 and 1,314.77

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Solution

The fourth proportional to 4,087.86, 6,131.79 and 1,314.77 is: 1,972.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.86 : 6,131.79 = 1,314.77 : x
  2. Step 2: Convert to fraction form
    4,087.86/6,131.79 = 1,314.77/x
  3. Step 3: Cross multiply
    4,087.86x = 6,131.79 × 1,314.77
  4. Step 4: Simplify right side
    4,087.86x = 8,061,908.87
  5. Step 5: Solve for x
    x = 8,061,908.87/4,087.86
  6. Step 6: Final answer
    x = 1,972.16

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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.