Home / 5,381.96-8,075.36-2,747.84

Finding the Fourth Proportional to 5,381.96, 8,075.36 and 2,747.84

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Solution

The fourth proportional to 5,381.96, 8,075.36 and 2,747.84 is: 4,122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.96 : 8,075.36 = 2,747.84 : x
  2. Step 2: Convert to fraction form
    5,381.96/8,075.36 = 2,747.84/x
  3. Step 3: Cross multiply
    5,381.96x = 8,075.36 × 2,747.84
  4. Step 4: Simplify right side
    5,381.96x = 22,189,763.72
  5. Step 5: Solve for x
    x = 22,189,763.72/5,381.96
  6. Step 6: Final answer
    x = 4,122.99

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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.