Home / 2,113.20-2,912.82-1,692.84

Finding the Fourth Proportional to 2,113.20, 2,912.82 and 1,692.84

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Solution

The fourth proportional to 2,113.20, 2,912.82 and 1,692.84 is: 2,333.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.20 : 2,912.82 = 1,692.84 : x
  2. Step 2: Convert to fraction form
    2,113.20/2,912.82 = 1,692.84/x
  3. Step 3: Cross multiply
    2,113.20x = 2,912.82 × 1,692.84
  4. Step 4: Simplify right side
    2,113.20x = 4,930,938.21
  5. Step 5: Solve for x
    x = 4,930,938.21/2,113.20
  6. Step 6: Final answer
    x = 2,333.40

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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.