Home / 2,188.80-3,020.64-1,194.18

Finding the Fourth Proportional to 2,188.80, 3,020.64 and 1,194.18

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Solution

The fourth proportional to 2,188.80, 3,020.64 and 1,194.18 is: 1,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.80 : 3,020.64 = 1,194.18 : x
  2. Step 2: Convert to fraction form
    2,188.80/3,020.64 = 1,194.18/x
  3. Step 3: Cross multiply
    2,188.80x = 3,020.64 × 1,194.18
  4. Step 4: Simplify right side
    2,188.80x = 3,607,187.88
  5. Step 5: Solve for x
    x = 3,607,187.88/2,188.80
  6. Step 6: Final answer
    x = 1,648.02

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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.