Home / 3,854.47-5,319.14-2,086.07

Finding the Fourth Proportional to 3,854.47, 5,319.14 and 2,086.07

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Solution

The fourth proportional to 3,854.47, 5,319.14 and 2,086.07 is: 2,878.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.47 : 5,319.14 = 2,086.07 : x
  2. Step 2: Convert to fraction form
    3,854.47/5,319.14 = 2,086.07/x
  3. Step 3: Cross multiply
    3,854.47x = 5,319.14 × 2,086.07
  4. Step 4: Simplify right side
    3,854.47x = 11,096,116.89
  5. Step 5: Solve for x
    x = 11,096,116.89/3,854.47
  6. Step 6: Final answer
    x = 2,878.77

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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.