Home / 2,206.07-3,308.45-889.40

Finding the Fourth Proportional to 2,206.07, 3,308.45 and 889.40

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Solution

The fourth proportional to 2,206.07, 3,308.45 and 889.40 is: 1,333.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.07 : 3,308.45 = 889.40 : x
  2. Step 2: Convert to fraction form
    2,206.07/3,308.45 = 889.40/x
  3. Step 3: Cross multiply
    2,206.07x = 3,308.45 × 889.40
  4. Step 4: Simplify right side
    2,206.07x = 2,942,539.25
  5. Step 5: Solve for x
    x = 2,942,539.25/2,206.07
  6. Step 6: Final answer
    x = 1,333.84

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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.