Home / 2,161.16-2,975.86-1,811.24

Finding the Fourth Proportional to 2,161.16, 2,975.86 and 1,811.24

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Solution

The fourth proportional to 2,161.16, 2,975.86 and 1,811.24 is: 2,494.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.16 : 2,975.86 = 1,811.24 : x
  2. Step 2: Convert to fraction form
    2,161.16/2,975.86 = 1,811.24/x
  3. Step 3: Cross multiply
    2,161.16x = 2,975.86 × 1,811.24
  4. Step 4: Simplify right side
    2,161.16x = 5,389,996.67
  5. Step 5: Solve for x
    x = 5,389,996.67/2,161.16
  6. Step 6: Final answer
    x = 2,494.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.