Home / 3,089.45-4,263.42-1,692.20

Finding the Fourth Proportional to 3,089.45, 4,263.42 and 1,692.20

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Solution

The fourth proportional to 3,089.45, 4,263.42 and 1,692.20 is: 2,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.45 : 4,263.42 = 1,692.20 : x
  2. Step 2: Convert to fraction form
    3,089.45/4,263.42 = 1,692.20/x
  3. Step 3: Cross multiply
    3,089.45x = 4,263.42 × 1,692.20
  4. Step 4: Simplify right side
    3,089.45x = 7,214,538.01
  5. Step 5: Solve for x
    x = 7,214,538.01/3,089.45
  6. Step 6: Final answer
    x = 2,335.22

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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.