Home / 3,022.47-4,172.67-2,225.12

Finding the Fourth Proportional to 3,022.47, 4,172.67 and 2,225.12

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Solution

The fourth proportional to 3,022.47, 4,172.67 and 2,225.12 is: 3,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.47 : 4,172.67 = 2,225.12 : x
  2. Step 2: Convert to fraction form
    3,022.47/4,172.67 = 2,225.12/x
  3. Step 3: Cross multiply
    3,022.47x = 4,172.67 × 2,225.12
  4. Step 4: Simplify right side
    3,022.47x = 9,284,670.61
  5. Step 5: Solve for x
    x = 9,284,670.61/3,022.47
  6. Step 6: Final answer
    x = 3,071.88

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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.