Home / 3,107.12-4,283.40-2,222.60

Finding the Fourth Proportional to 3,107.12, 4,283.40 and 2,222.60

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Solution

The fourth proportional to 3,107.12, 4,283.40 and 2,222.60 is: 3,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.12 : 4,283.40 = 2,222.60 : x
  2. Step 2: Convert to fraction form
    3,107.12/4,283.40 = 2,222.60/x
  3. Step 3: Cross multiply
    3,107.12x = 4,283.40 × 2,222.60
  4. Step 4: Simplify right side
    3,107.12x = 9,520,284.84
  5. Step 5: Solve for x
    x = 9,520,284.84/3,107.12
  6. Step 6: Final answer
    x = 3,064.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.