Home / 7,085.16-9,778.59-4,102.94

Finding the Fourth Proportional to 7,085.16, 9,778.59 and 4,102.94

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Solution

The fourth proportional to 7,085.16, 9,778.59 and 4,102.94 is: 5,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.16 : 9,778.59 = 4,102.94 : x
  2. Step 2: Convert to fraction form
    7,085.16/9,778.59 = 4,102.94/x
  3. Step 3: Cross multiply
    7,085.16x = 9,778.59 × 4,102.94
  4. Step 4: Simplify right side
    7,085.16x = 40,120,992.50
  5. Step 5: Solve for x
    x = 40,120,992.50/7,085.16
  6. Step 6: Final answer
    x = 5,662.68

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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.