Home / 3,109.17-4,290.73-1,692.76

Finding the Fourth Proportional to 3,109.17, 4,290.73 and 1,692.76

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Solution

The fourth proportional to 3,109.17, 4,290.73 and 1,692.76 is: 2,336.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.17 : 4,290.73 = 1,692.76 : x
  2. Step 2: Convert to fraction form
    3,109.17/4,290.73 = 1,692.76/x
  3. Step 3: Cross multiply
    3,109.17x = 4,290.73 × 1,692.76
  4. Step 4: Simplify right side
    3,109.17x = 7,263,188.47
  5. Step 5: Solve for x
    x = 7,263,188.47/3,109.17
  6. Step 6: Final answer
    x = 2,336.06

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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.