Home / 7,138.60-9,849.94-4,153.35

Finding the Fourth Proportional to 7,138.60, 9,849.94 and 4,153.35

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Solution

The fourth proportional to 7,138.60, 9,849.94 and 4,153.35 is: 5,730.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.60 : 9,849.94 = 4,153.35 : x
  2. Step 2: Convert to fraction form
    7,138.60/9,849.94 = 4,153.35/x
  3. Step 3: Cross multiply
    7,138.60x = 9,849.94 × 4,153.35
  4. Step 4: Simplify right side
    7,138.60x = 40,910,248.30
  5. Step 5: Solve for x
    x = 40,910,248.30/7,138.60
  6. Step 6: Final answer
    x = 5,730.85

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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.