Home / 2,561.68-3,839.52-1,943.32

Finding the Fourth Proportional to 2,561.68, 3,839.52 and 1,943.32

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Solution

The fourth proportional to 2,561.68, 3,839.52 and 1,943.32 is: 2,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.68 : 3,839.52 = 1,943.32 : x
  2. Step 2: Convert to fraction form
    2,561.68/3,839.52 = 1,943.32/x
  3. Step 3: Cross multiply
    2,561.68x = 3,839.52 × 1,943.32
  4. Step 4: Simplify right side
    2,561.68x = 7,461,416.01
  5. Step 5: Solve for x
    x = 7,461,416.01/2,561.68
  6. Step 6: Final answer
    x = 2,912.70

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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.