Home / 4,689.36-7,028.64-2,222.64

Finding the Fourth Proportional to 4,689.36, 7,028.64 and 2,222.64

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Solution

The fourth proportional to 4,689.36, 7,028.64 and 2,222.64 is: 3,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.36 : 7,028.64 = 2,222.64 : x
  2. Step 2: Convert to fraction form
    4,689.36/7,028.64 = 2,222.64/x
  3. Step 3: Cross multiply
    4,689.36x = 7,028.64 × 2,222.64
  4. Step 4: Simplify right side
    4,689.36x = 15,622,136.41
  5. Step 5: Solve for x
    x = 15,622,136.41/4,689.36
  6. Step 6: Final answer
    x = 3,331.40

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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.