Home / 2,692.20-4,043.10-2,605.80

Finding the Fourth Proportional to 2,692.20, 4,043.10 and 2,605.80

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Solution

The fourth proportional to 2,692.20, 4,043.10 and 2,605.80 is: 3,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.20 : 4,043.10 = 2,605.80 : x
  2. Step 2: Convert to fraction form
    2,692.20/4,043.10 = 2,605.80/x
  3. Step 3: Cross multiply
    2,692.20x = 4,043.10 × 2,605.80
  4. Step 4: Simplify right side
    2,692.20x = 10,535,509.98
  5. Step 5: Solve for x
    x = 10,535,509.98/2,692.20
  6. Step 6: Final answer
    x = 3,913.35

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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.