Home / 2,481.42-3,424.77-1,890.84

Finding the Fourth Proportional to 2,481.42, 3,424.77 and 1,890.84

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Solution

The fourth proportional to 2,481.42, 3,424.77 and 1,890.84 is: 2,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.42 : 3,424.77 = 1,890.84 : x
  2. Step 2: Convert to fraction form
    2,481.42/3,424.77 = 1,890.84/x
  3. Step 3: Cross multiply
    2,481.42x = 3,424.77 × 1,890.84
  4. Step 4: Simplify right side
    2,481.42x = 6,475,692.11
  5. Step 5: Solve for x
    x = 6,475,692.11/2,481.42
  6. Step 6: Final answer
    x = 2,609.67

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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.