Home / 3,089.70-4,263.75-1,692.45

Finding the Fourth Proportional to 3,089.70, 4,263.75 and 1,692.45

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Solution

The fourth proportional to 3,089.70, 4,263.75 and 1,692.45 is: 2,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.70 : 4,263.75 = 1,692.45 : x
  2. Step 2: Convert to fraction form
    3,089.70/4,263.75 = 1,692.45/x
  3. Step 3: Cross multiply
    3,089.70x = 4,263.75 × 1,692.45
  4. Step 4: Simplify right side
    3,089.70x = 7,216,183.69
  5. Step 5: Solve for x
    x = 7,216,183.69/3,089.70
  6. Step 6: Final answer
    x = 2,335.56

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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.