Home / 2,638.21-3,637.42-1,692.33

Finding the Fourth Proportional to 2,638.21, 3,637.42 and 1,692.33

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Solution

The fourth proportional to 2,638.21, 3,637.42 and 1,692.33 is: 2,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.21 : 3,637.42 = 1,692.33 : x
  2. Step 2: Convert to fraction form
    2,638.21/3,637.42 = 1,692.33/x
  3. Step 3: Cross multiply
    2,638.21x = 3,637.42 × 1,692.33
  4. Step 4: Simplify right side
    2,638.21x = 6,155,714.99
  5. Step 5: Solve for x
    x = 6,155,714.99/2,638.21
  6. Step 6: Final answer
    x = 2,333.29

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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.