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Finding the Fourth Proportional to 5,656.47, 8,485.84 and 1,958.62

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Solution

The fourth proportional to 5,656.47, 8,485.84 and 1,958.62 is: 2,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.47 : 8,485.84 = 1,958.62 : x
  2. Step 2: Convert to fraction form
    5,656.47/8,485.84 = 1,958.62/x
  3. Step 3: Cross multiply
    5,656.47x = 8,485.84 × 1,958.62
  4. Step 4: Simplify right side
    5,656.47x = 16,620,501.26
  5. Step 5: Solve for x
    x = 16,620,501.26/5,656.47
  6. Step 6: Final answer
    x = 2,938.32

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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.