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Finding the Fourth Proportional to 7,081.58, 9,772.86 and 3,937.76

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Solution

The fourth proportional to 7,081.58, 9,772.86 and 3,937.76 is: 5,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.58 : 9,772.86 = 3,937.76 : x
  2. Step 2: Convert to fraction form
    7,081.58/9,772.86 = 3,937.76/x
  3. Step 3: Cross multiply
    7,081.58x = 9,772.86 × 3,937.76
  4. Step 4: Simplify right side
    7,081.58x = 38,483,177.19
  5. Step 5: Solve for x
    x = 38,483,177.19/7,081.58
  6. Step 6: Final answer
    x = 5,434.26

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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.