Home / 2,789.34-3,849.40-1,530.45

Finding the Fourth Proportional to 2,789.34, 3,849.40 and 1,530.45

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Solution

The fourth proportional to 2,789.34, 3,849.40 and 1,530.45 is: 2,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.34 : 3,849.40 = 1,530.45 : x
  2. Step 2: Convert to fraction form
    2,789.34/3,849.40 = 1,530.45/x
  3. Step 3: Cross multiply
    2,789.34x = 3,849.40 × 1,530.45
  4. Step 4: Simplify right side
    2,789.34x = 5,891,293.10
  5. Step 5: Solve for x
    x = 5,891,293.10/2,789.34
  6. Step 6: Final answer
    x = 2,112.08

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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.