Home / 3,061.36-4,224.78-1,664.14

Finding the Fourth Proportional to 3,061.36, 4,224.78 and 1,664.14

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Solution

The fourth proportional to 3,061.36, 4,224.78 and 1,664.14 is: 2,296.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.36 : 4,224.78 = 1,664.14 : x
  2. Step 2: Convert to fraction form
    3,061.36/4,224.78 = 1,664.14/x
  3. Step 3: Cross multiply
    3,061.36x = 4,224.78 × 1,664.14
  4. Step 4: Simplify right side
    3,061.36x = 7,030,625.39
  5. Step 5: Solve for x
    x = 7,030,625.39/3,061.36
  6. Step 6: Final answer
    x = 2,296.57

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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.