Home / 2,170.22-2,993.55-1,384.70

Finding the Fourth Proportional to 2,170.22, 2,993.55 and 1,384.70

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Solution

The fourth proportional to 2,170.22, 2,993.55 and 1,384.70 is: 1,910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.22 : 2,993.55 = 1,384.70 : x
  2. Step 2: Convert to fraction form
    2,170.22/2,993.55 = 1,384.70/x
  3. Step 3: Cross multiply
    2,170.22x = 2,993.55 × 1,384.70
  4. Step 4: Simplify right side
    2,170.22x = 4,145,168.69
  5. Step 5: Solve for x
    x = 4,145,168.69/2,170.22
  6. Step 6: Final answer
    x = 1,910.02

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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.