Home / 3,400.41-4,692.63-2,220.80

Finding the Fourth Proportional to 3,400.41, 4,692.63 and 2,220.80

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Solution

The fourth proportional to 3,400.41, 4,692.63 and 2,220.80 is: 3,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.41 : 4,692.63 = 2,220.80 : x
  2. Step 2: Convert to fraction form
    3,400.41/4,692.63 = 2,220.80/x
  3. Step 3: Cross multiply
    3,400.41x = 4,692.63 × 2,220.80
  4. Step 4: Simplify right side
    3,400.41x = 10,421,369.24
  5. Step 5: Solve for x
    x = 10,421,369.24/3,400.41
  6. Step 6: Final answer
    x = 3,064.74

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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.