Home / 3,692.26-5,531.10-3,145.60

Finding the Fourth Proportional to 3,692.26, 5,531.10 and 3,145.60

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Solution

The fourth proportional to 3,692.26, 5,531.10 and 3,145.60 is: 4,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.26 : 5,531.10 = 3,145.60 : x
  2. Step 2: Convert to fraction form
    3,692.26/5,531.10 = 3,145.60/x
  3. Step 3: Cross multiply
    3,692.26x = 5,531.10 × 3,145.60
  4. Step 4: Simplify right side
    3,692.26x = 17,398,628.16
  5. Step 5: Solve for x
    x = 17,398,628.16/3,692.26
  6. Step 6: Final answer
    x = 4,712.19

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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.