Home / 3,042.80-4,199.03-1,645.55

Finding the Fourth Proportional to 3,042.80, 4,199.03 and 1,645.55

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Solution

The fourth proportional to 3,042.80, 4,199.03 and 1,645.55 is: 2,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.80 : 4,199.03 = 1,645.55 : x
  2. Step 2: Convert to fraction form
    3,042.80/4,199.03 = 1,645.55/x
  3. Step 3: Cross multiply
    3,042.80x = 4,199.03 × 1,645.55
  4. Step 4: Simplify right side
    3,042.80x = 6,909,692.82
  5. Step 5: Solve for x
    x = 6,909,692.82/3,042.80
  6. Step 6: Final answer
    x = 2,270.84

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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.