Home / 5,381.24-8,072.46-1,682.78

Finding the Fourth Proportional to 5,381.24, 8,072.46 and 1,682.78

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Solution

The fourth proportional to 5,381.24, 8,072.46 and 1,682.78 is: 2,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.24 : 8,072.46 = 1,682.78 : x
  2. Step 2: Convert to fraction form
    5,381.24/8,072.46 = 1,682.78/x
  3. Step 3: Cross multiply
    5,381.24x = 8,072.46 × 1,682.78
  4. Step 4: Simplify right side
    5,381.24x = 13,584,133.88
  5. Step 5: Solve for x
    x = 13,584,133.88/5,381.24
  6. Step 6: Final answer
    x = 2,524.35

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1.5x scale

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.