Home / 4,091.70-6,138.68-1,459.80

Finding the Fourth Proportional to 4,091.70, 6,138.68 and 1,459.80

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Solution

The fourth proportional to 4,091.70, 6,138.68 and 1,459.80 is: 2,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.70 : 6,138.68 = 1,459.80 : x
  2. Step 2: Convert to fraction form
    4,091.70/6,138.68 = 1,459.80/x
  3. Step 3: Cross multiply
    4,091.70x = 6,138.68 × 1,459.80
  4. Step 4: Simplify right side
    4,091.70x = 8,961,237.77
  5. Step 5: Solve for x
    x = 8,961,237.77/4,091.70
  6. Step 6: Final answer
    x = 2,190.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.