Home / 3,521.07-4,858.89-1,949.06

Finding the Fourth Proportional to 3,521.07, 4,858.89 and 1,949.06

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Solution

The fourth proportional to 3,521.07, 4,858.89 and 1,949.06 is: 2,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.07 : 4,858.89 = 1,949.06 : x
  2. Step 2: Convert to fraction form
    3,521.07/4,858.89 = 1,949.06/x
  3. Step 3: Cross multiply
    3,521.07x = 4,858.89 × 1,949.06
  4. Step 4: Simplify right side
    3,521.07x = 9,470,272.98
  5. Step 5: Solve for x
    x = 9,470,272.98/3,521.07
  6. Step 6: Final answer
    x = 2,689.60

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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.