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Finding the Fourth Proportional to 5,148.35, 7,723.43 and 1,866.03

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Solution

The fourth proportional to 5,148.35, 7,723.43 and 1,866.03 is: 2,799.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.35 : 7,723.43 = 1,866.03 : x
  2. Step 2: Convert to fraction form
    5,148.35/7,723.43 = 1,866.03/x
  3. Step 3: Cross multiply
    5,148.35x = 7,723.43 × 1,866.03
  4. Step 4: Simplify right side
    5,148.35x = 14,412,152.08
  5. Step 5: Solve for x
    x = 14,412,152.08/5,148.35
  6. Step 6: Final answer
    x = 2,799.37

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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.