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Finding the Fourth Proportional to 5,193, 7,790.26 and 1,681.84

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Solution

The fourth proportional to 5,193, 7,790.26 and 1,681.84 is: 2,523.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193 : 7,790.26 = 1,681.84 : x
  2. Step 2: Convert to fraction form
    5,193/7,790.26 = 1,681.84/x
  3. Step 3: Cross multiply
    5,193x = 7,790.26 × 1,681.84
  4. Step 4: Simplify right side
    5,193x = 13,101,970.88
  5. Step 5: Solve for x
    x = 13,101,970.88/5,193
  6. Step 6: Final answer
    x = 2,523.01

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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.