Home / 2,839.16-3,918.16-1,719.47

Finding the Fourth Proportional to 2,839.16, 3,918.16 and 1,719.47

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Solution

The fourth proportional to 2,839.16, 3,918.16 and 1,719.47 is: 2,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.16 : 3,918.16 = 1,719.47 : x
  2. Step 2: Convert to fraction form
    2,839.16/3,918.16 = 1,719.47/x
  3. Step 3: Cross multiply
    2,839.16x = 3,918.16 × 1,719.47
  4. Step 4: Simplify right side
    2,839.16x = 6,737,138.81
  5. Step 5: Solve for x
    x = 6,737,138.81/2,839.16
  6. Step 6: Final answer
    x = 2,372.93

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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.