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Finding the Fourth Proportional to 7,062.85, 9,746.64 and 4,078.62

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Solution

The fourth proportional to 7,062.85, 9,746.64 and 4,078.62 is: 5,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062.85 : 9,746.64 = 4,078.62 : x
  2. Step 2: Convert to fraction form
    7,062.85/9,746.64 = 4,078.62/x
  3. Step 3: Cross multiply
    7,062.85x = 9,746.64 × 4,078.62
  4. Step 4: Simplify right side
    7,062.85x = 39,752,840.84
  5. Step 5: Solve for x
    x = 39,752,840.84/7,062.85
  6. Step 6: Final answer
    x = 5,628.44

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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.