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Finding the Fourth Proportional to 5,326.53, 7,990.53 and 2,554.57

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Solution

The fourth proportional to 5,326.53, 7,990.53 and 2,554.57 is: 3,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.53 : 7,990.53 = 2,554.57 : x
  2. Step 2: Convert to fraction form
    5,326.53/7,990.53 = 2,554.57/x
  3. Step 3: Cross multiply
    5,326.53x = 7,990.53 × 2,554.57
  4. Step 4: Simplify right side
    5,326.53x = 20,412,368.22
  5. Step 5: Solve for x
    x = 20,412,368.22/5,326.53
  6. Step 6: Final answer
    x = 3,832.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.