Home / 3,896.16-5,376.72-2,218.11

Finding the Fourth Proportional to 3,896.16, 5,376.72 and 2,218.11

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Solution

The fourth proportional to 3,896.16, 5,376.72 and 2,218.11 is: 3,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.16 : 5,376.72 = 2,218.11 : x
  2. Step 2: Convert to fraction form
    3,896.16/5,376.72 = 2,218.11/x
  3. Step 3: Cross multiply
    3,896.16x = 5,376.72 × 2,218.11
  4. Step 4: Simplify right side
    3,896.16x = 11,926,156.40
  5. Step 5: Solve for x
    x = 11,926,156.40/3,896.16
  6. Step 6: Final answer
    x = 3,061.00

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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.