Home / 2,151.04-3,224.32-1,125.76

Finding the Fourth Proportional to 2,151.04, 3,224.32 and 1,125.76

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Solution

The fourth proportional to 2,151.04, 3,224.32 and 1,125.76 is: 1,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.04 : 3,224.32 = 1,125.76 : x
  2. Step 2: Convert to fraction form
    2,151.04/3,224.32 = 1,125.76/x
  3. Step 3: Cross multiply
    2,151.04x = 3,224.32 × 1,125.76
  4. Step 4: Simplify right side
    2,151.04x = 3,629,810.48
  5. Step 5: Solve for x
    x = 3,629,810.48/2,151.04
  6. Step 6: Final answer
    x = 1,687.47

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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.