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Finding the Fourth Proportional to 2,991.60, 4,494.60 and 2,674.80

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Solution

The fourth proportional to 2,991.60, 4,494.60 and 2,674.80 is: 4,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.60 : 4,494.60 = 2,674.80 : x
  2. Step 2: Convert to fraction form
    2,991.60/4,494.60 = 2,674.80/x
  3. Step 3: Cross multiply
    2,991.60x = 4,494.60 × 2,674.80
  4. Step 4: Simplify right side
    2,991.60x = 12,022,156.08
  5. Step 5: Solve for x
    x = 12,022,156.08/2,991.60
  6. Step 6: Final answer
    x = 4,018.64

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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.