Home / 5,193.76-7,167.40-2,835.90

Finding the Fourth Proportional to 5,193.76, 7,167.40 and 2,835.90

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Solution

The fourth proportional to 5,193.76, 7,167.40 and 2,835.90 is: 3,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193.76 : 7,167.40 = 2,835.90 : x
  2. Step 2: Convert to fraction form
    5,193.76/7,167.40 = 2,835.90/x
  3. Step 3: Cross multiply
    5,193.76x = 7,167.40 × 2,835.90
  4. Step 4: Simplify right side
    5,193.76x = 20,326,029.66
  5. Step 5: Solve for x
    x = 20,326,029.66/5,193.76
  6. Step 6: Final answer
    x = 3,913.55

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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.