Home / 5,717.80-8,577.34-1,821.30

Finding the Fourth Proportional to 5,717.80, 8,577.34 and 1,821.30

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Solution

The fourth proportional to 5,717.80, 8,577.34 and 1,821.30 is: 2,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.80 : 8,577.34 = 1,821.30 : x
  2. Step 2: Convert to fraction form
    5,717.80/8,577.34 = 1,821.30/x
  3. Step 3: Cross multiply
    5,717.80x = 8,577.34 × 1,821.30
  4. Step 4: Simplify right side
    5,717.80x = 15,621,909.34
  5. Step 5: Solve for x
    x = 15,621,909.34/5,717.80
  6. Step 6: Final answer
    x = 2,732.15

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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.