Home / 2,789.60-3,849.52-1,547.68

Finding the Fourth Proportional to 2,789.60, 3,849.52 and 1,547.68

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Solution

The fourth proportional to 2,789.60, 3,849.52 and 1,547.68 is: 2,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.60 : 3,849.52 = 1,547.68 : x
  2. Step 2: Convert to fraction form
    2,789.60/3,849.52 = 1,547.68/x
  3. Step 3: Cross multiply
    2,789.60x = 3,849.52 × 1,547.68
  4. Step 4: Simplify right side
    2,789.60x = 5,957,825.11
  5. Step 5: Solve for x
    x = 5,957,825.11/2,789.60
  6. Step 6: Final answer
    x = 2,135.73

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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.