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Finding the Fourth Proportional to 7,213.93, 9,955.35 and 4,231.91

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Solution

The fourth proportional to 7,213.93, 9,955.35 and 4,231.91 is: 5,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.93 : 9,955.35 = 4,231.91 : x
  2. Step 2: Convert to fraction form
    7,213.93/9,955.35 = 4,231.91/x
  3. Step 3: Cross multiply
    7,213.93x = 9,955.35 × 4,231.91
  4. Step 4: Simplify right side
    7,213.93x = 42,130,145.22
  5. Step 5: Solve for x
    x = 42,130,145.22/7,213.93
  6. Step 6: Final answer
    x = 5,840.11

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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.