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Finding the Fourth Proportional to 2,194.84, 3,028.85 and 1,200.10

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Solution

The fourth proportional to 2,194.84, 3,028.85 and 1,200.10 is: 1,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.84 : 3,028.85 = 1,200.10 : x
  2. Step 2: Convert to fraction form
    2,194.84/3,028.85 = 1,200.10/x
  3. Step 3: Cross multiply
    2,194.84x = 3,028.85 × 1,200.10
  4. Step 4: Simplify right side
    2,194.84x = 3,634,901.74
  5. Step 5: Solve for x
    x = 3,634,901.74/2,194.84
  6. Step 6: Final answer
    x = 1,656.11

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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.