Home / 3,421.72-4,722.22-2,580.94

Finding the Fourth Proportional to 3,421.72, 4,722.22 and 2,580.94

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Solution

The fourth proportional to 3,421.72, 4,722.22 and 2,580.94 is: 3,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.72 : 4,722.22 = 2,580.94 : x
  2. Step 2: Convert to fraction form
    3,421.72/4,722.22 = 2,580.94/x
  3. Step 3: Cross multiply
    3,421.72x = 4,722.22 × 2,580.94
  4. Step 4: Simplify right side
    3,421.72x = 12,187,766.49
  5. Step 5: Solve for x
    x = 12,187,766.49/3,421.72
  6. Step 6: Final answer
    x = 3,561.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.