Home / 5,252.52-7,878.30-1,789.56

Finding the Fourth Proportional to 5,252.52, 7,878.30 and 1,789.56

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Solution

The fourth proportional to 5,252.52, 7,878.30 and 1,789.56 is: 2,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.52 : 7,878.30 = 1,789.56 : x
  2. Step 2: Convert to fraction form
    5,252.52/7,878.30 = 1,789.56/x
  3. Step 3: Cross multiply
    5,252.52x = 7,878.30 × 1,789.56
  4. Step 4: Simplify right side
    5,252.52x = 14,098,690.55
  5. Step 5: Solve for x
    x = 14,098,690.55/5,252.52
  6. Step 6: Final answer
    x = 2,684.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.