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Finding the Fourth Proportional to 7,231.82, 9,980.35 and 4,088.00

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Solution

The fourth proportional to 7,231.82, 9,980.35 and 4,088.00 is: 5,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.82 : 9,980.35 = 4,088.00 : x
  2. Step 2: Convert to fraction form
    7,231.82/9,980.35 = 4,088.00/x
  3. Step 3: Cross multiply
    7,231.82x = 9,980.35 × 4,088.00
  4. Step 4: Simplify right side
    7,231.82x = 40,799,685.53
  5. Step 5: Solve for x
    x = 40,799,685.53/7,231.82
  6. Step 6: Final answer
    x = 5,641.69

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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.