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Finding the Fourth Proportional to 5,317.22, 7,975.60 and 1,807.09

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Solution

The fourth proportional to 5,317.22, 7,975.60 and 1,807.09 is: 2,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.22 : 7,975.60 = 1,807.09 : x
  2. Step 2: Convert to fraction form
    5,317.22/7,975.60 = 1,807.09/x
  3. Step 3: Cross multiply
    5,317.22x = 7,975.60 × 1,807.09
  4. Step 4: Simplify right side
    5,317.22x = 14,412,602.55
  5. Step 5: Solve for x
    x = 14,412,602.55/5,317.22
  6. Step 6: Final answer
    x = 2,710.55

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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.