Home / 4,090.60-6,140.70-2,635.80

Finding the Fourth Proportional to 4,090.60, 6,140.70 and 2,635.80

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Solution

The fourth proportional to 4,090.60, 6,140.70 and 2,635.80 is: 3,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.60 : 6,140.70 = 2,635.80 : x
  2. Step 2: Convert to fraction form
    4,090.60/6,140.70 = 2,635.80/x
  3. Step 3: Cross multiply
    4,090.60x = 6,140.70 × 2,635.80
  4. Step 4: Simplify right side
    4,090.60x = 16,185,657.06
  5. Step 5: Solve for x
    x = 16,185,657.06/4,090.60
  6. Step 6: Final answer
    x = 3,956.79

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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.