Home / 2,824.17-3,895.81-1,986.16

Finding the Fourth Proportional to 2,824.17, 3,895.81 and 1,986.16

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Solution

The fourth proportional to 2,824.17, 3,895.81 and 1,986.16 is: 2,739.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.17 : 3,895.81 = 1,986.16 : x
  2. Step 2: Convert to fraction form
    2,824.17/3,895.81 = 1,986.16/x
  3. Step 3: Cross multiply
    2,824.17x = 3,895.81 × 1,986.16
  4. Step 4: Simplify right side
    2,824.17x = 7,737,701.99
  5. Step 5: Solve for x
    x = 7,737,701.99/2,824.17
  6. Step 6: Final answer
    x = 2,739.81

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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.