Home / 3,954.17-5,456.54-2,185.65

Finding the Fourth Proportional to 3,954.17, 5,456.54 and 2,185.65

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Solution

The fourth proportional to 3,954.17, 5,456.54 and 2,185.65 is: 3,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.17 : 5,456.54 = 2,185.65 : x
  2. Step 2: Convert to fraction form
    3,954.17/5,456.54 = 2,185.65/x
  3. Step 3: Cross multiply
    3,954.17x = 5,456.54 × 2,185.65
  4. Step 4: Simplify right side
    3,954.17x = 11,926,075.72
  5. Step 5: Solve for x
    x = 11,926,075.72/3,954.17
  6. Step 6: Final answer
    x = 3,016.08

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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.