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Finding the Fourth Proportional to 5,655.78, 8,486.49 and 2,538.01

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Solution

The fourth proportional to 5,655.78, 8,486.49 and 2,538.01 is: 3,808.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.78 : 8,486.49 = 2,538.01 : x
  2. Step 2: Convert to fraction form
    5,655.78/8,486.49 = 2,538.01/x
  3. Step 3: Cross multiply
    5,655.78x = 8,486.49 × 2,538.01
  4. Step 4: Simplify right side
    5,655.78x = 21,538,816.61
  5. Step 5: Solve for x
    x = 21,538,816.61/5,655.78
  6. Step 6: Final answer
    x = 3,808.29

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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.