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Finding the Fourth Proportional to 5,154.63, 7,731.94 and 1,259.03

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Solution

The fourth proportional to 5,154.63, 7,731.94 and 1,259.03 is: 1,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.63 : 7,731.94 = 1,259.03 : x
  2. Step 2: Convert to fraction form
    5,154.63/7,731.94 = 1,259.03/x
  3. Step 3: Cross multiply
    5,154.63x = 7,731.94 × 1,259.03
  4. Step 4: Simplify right side
    5,154.63x = 9,734,744.42
  5. Step 5: Solve for x
    x = 9,734,744.42/5,154.63
  6. Step 6: Final answer
    x = 1,888.54

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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.