Home / 1,919.60-2,859.34-1,894.08

Finding the Fourth Proportional to 1,919.60, 2,859.34 and 1,894.08

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Solution

The fourth proportional to 1,919.60, 2,859.34 and 1,894.08 is: 2,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.60 : 2,859.34 = 1,894.08 : x
  2. Step 2: Convert to fraction form
    1,919.60/2,859.34 = 1,894.08/x
  3. Step 3: Cross multiply
    1,919.60x = 2,859.34 × 1,894.08
  4. Step 4: Simplify right side
    1,919.60x = 5,415,809.24
  5. Step 5: Solve for x
    x = 5,415,809.24/1,919.60
  6. Step 6: Final answer
    x = 2,821.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.