Home / 2,789.47-3,849.33-1,530.49

Finding the Fourth Proportional to 2,789.47, 3,849.33 and 1,530.49

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Solution

The fourth proportional to 2,789.47, 3,849.33 and 1,530.49 is: 2,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.47 : 3,849.33 = 1,530.49 : x
  2. Step 2: Convert to fraction form
    2,789.47/3,849.33 = 1,530.49/x
  3. Step 3: Cross multiply
    2,789.47x = 3,849.33 × 1,530.49
  4. Step 4: Simplify right side
    2,789.47x = 5,891,364.41
  5. Step 5: Solve for x
    x = 5,891,364.41/2,789.47
  6. Step 6: Final answer
    x = 2,112.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.