Home / 3,019.30-4,168.68-1,886.70

Finding the Fourth Proportional to 3,019.30, 4,168.68 and 1,886.70

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Solution

The fourth proportional to 3,019.30, 4,168.68 and 1,886.70 is: 2,604.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.30 : 4,168.68 = 1,886.70 : x
  2. Step 2: Convert to fraction form
    3,019.30/4,168.68 = 1,886.70/x
  3. Step 3: Cross multiply
    3,019.30x = 4,168.68 × 1,886.70
  4. Step 4: Simplify right side
    3,019.30x = 7,865,048.56
  5. Step 5: Solve for x
    x = 7,865,048.56/3,019.30
  6. Step 6: Final answer
    x = 2,604.92

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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.