Home / 2,170.36-2,995.14-1,226.20

Finding the Fourth Proportional to 2,170.36, 2,995.14 and 1,226.20

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Solution

The fourth proportional to 2,170.36, 2,995.14 and 1,226.20 is: 1,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.36 : 2,995.14 = 1,226.20 : x
  2. Step 2: Convert to fraction form
    2,170.36/2,995.14 = 1,226.20/x
  3. Step 3: Cross multiply
    2,170.36x = 2,995.14 × 1,226.20
  4. Step 4: Simplify right side
    2,170.36x = 3,672,640.67
  5. Step 5: Solve for x
    x = 3,672,640.67/2,170.36
  6. Step 6: Final answer
    x = 1,692.18

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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.