Home / 3,914.40-5,871.60-2,064.80

Finding the Fourth Proportional to 3,914.40, 5,871.60 and 2,064.80

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Solution

The fourth proportional to 3,914.40, 5,871.60 and 2,064.80 is: 3,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.40 : 5,871.60 = 2,064.80 : x
  2. Step 2: Convert to fraction form
    3,914.40/5,871.60 = 2,064.80/x
  3. Step 3: Cross multiply
    3,914.40x = 5,871.60 × 2,064.80
  4. Step 4: Simplify right side
    3,914.40x = 12,123,679.68
  5. Step 5: Solve for x
    x = 12,123,679.68/3,914.40
  6. Step 6: Final answer
    x = 3,097.20

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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.