Home / 3,311.36-4,968.40-1,578.88

Finding the Fourth Proportional to 3,311.36, 4,968.40 and 1,578.88

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Solution

The fourth proportional to 3,311.36, 4,968.40 and 1,578.88 is: 2,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.36 : 4,968.40 = 1,578.88 : x
  2. Step 2: Convert to fraction form
    3,311.36/4,968.40 = 1,578.88/x
  3. Step 3: Cross multiply
    3,311.36x = 4,968.40 × 1,578.88
  4. Step 4: Simplify right side
    3,311.36x = 7,844,507.39
  5. Step 5: Solve for x
    x = 7,844,507.39/3,311.36
  6. Step 6: Final answer
    x = 2,368.97

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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.