Home / 2,124.57-3,187.77-1,151.37

Finding the Fourth Proportional to 2,124.57, 3,187.77 and 1,151.37

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Solution

The fourth proportional to 2,124.57, 3,187.77 and 1,151.37 is: 1,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.57 : 3,187.77 = 1,151.37 : x
  2. Step 2: Convert to fraction form
    2,124.57/3,187.77 = 1,151.37/x
  3. Step 3: Cross multiply
    2,124.57x = 3,187.77 × 1,151.37
  4. Step 4: Simplify right side
    2,124.57x = 3,670,302.74
  5. Step 5: Solve for x
    x = 3,670,302.74/2,124.57
  6. Step 6: Final answer
    x = 1,727.55

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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.