Home / 4,091.60-6,137.40-3,000.80

Finding the Fourth Proportional to 4,091.60, 6,137.40 and 3,000.80

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Solution

The fourth proportional to 4,091.60, 6,137.40 and 3,000.80 is: 4,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.60 : 6,137.40 = 3,000.80 : x
  2. Step 2: Convert to fraction form
    4,091.60/6,137.40 = 3,000.80/x
  3. Step 3: Cross multiply
    4,091.60x = 6,137.40 × 3,000.80
  4. Step 4: Simplify right side
    4,091.60x = 18,417,109.92
  5. Step 5: Solve for x
    x = 18,417,109.92/4,091.60
  6. Step 6: Final answer
    x = 4,501.20

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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.