Home / 2,188.03-3,282.09-1,220.29

Finding the Fourth Proportional to 2,188.03, 3,282.09 and 1,220.29

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Solution

The fourth proportional to 2,188.03, 3,282.09 and 1,220.29 is: 1,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.03 : 3,282.09 = 1,220.29 : x
  2. Step 2: Convert to fraction form
    2,188.03/3,282.09 = 1,220.29/x
  3. Step 3: Cross multiply
    2,188.03x = 3,282.09 × 1,220.29
  4. Step 4: Simplify right side
    2,188.03x = 4,005,114.39
  5. Step 5: Solve for x
    x = 4,005,114.39/2,188.03
  6. Step 6: Final answer
    x = 1,830.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.