Home / 2,110.86-3,163.29-999.09

Finding the Fourth Proportional to 2,110.86, 3,163.29 and 999.09

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Solution

The fourth proportional to 2,110.86, 3,163.29 and 999.09 is: 1,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.86 : 3,163.29 = 999.09 : x
  2. Step 2: Convert to fraction form
    2,110.86/3,163.29 = 999.09/x
  3. Step 3: Cross multiply
    2,110.86x = 3,163.29 × 999.09
  4. Step 4: Simplify right side
    2,110.86x = 3,160,411.41
  5. Step 5: Solve for x
    x = 3,160,411.41/2,110.86
  6. Step 6: Final answer
    x = 1,497.22

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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.