Home / 2,107.90-3,162.27-1,068.49

Finding the Fourth Proportional to 2,107.90, 3,162.27 and 1,068.49

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Solution

The fourth proportional to 2,107.90, 3,162.27 and 1,068.49 is: 1,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.90 : 3,162.27 = 1,068.49 : x
  2. Step 2: Convert to fraction form
    2,107.90/3,162.27 = 1,068.49/x
  3. Step 3: Cross multiply
    2,107.90x = 3,162.27 × 1,068.49
  4. Step 4: Simplify right side
    2,107.90x = 3,378,853.87
  5. Step 5: Solve for x
    x = 3,378,853.87/2,107.90
  6. Step 6: Final answer
    x = 1,602.95

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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.