Home / 3,521.81-4,860.14-1,949.94

Finding the Fourth Proportional to 3,521.81, 4,860.14 and 1,949.94

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Solution

The fourth proportional to 3,521.81, 4,860.14 and 1,949.94 is: 2,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.81 : 4,860.14 = 1,949.94 : x
  2. Step 2: Convert to fraction form
    3,521.81/4,860.14 = 1,949.94/x
  3. Step 3: Cross multiply
    3,521.81x = 4,860.14 × 1,949.94
  4. Step 4: Simplify right side
    3,521.81x = 9,476,971.64
  5. Step 5: Solve for x
    x = 9,476,971.64/3,521.81
  6. Step 6: Final answer
    x = 2,690.94

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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.