Home / 1,900.14-2,622.32-1,340.80

Finding the Fourth Proportional to 1,900.14, 2,622.32 and 1,340.80

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Solution

The fourth proportional to 1,900.14, 2,622.32 and 1,340.80 is: 1,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.14 : 2,622.32 = 1,340.80 : x
  2. Step 2: Convert to fraction form
    1,900.14/2,622.32 = 1,340.80/x
  3. Step 3: Cross multiply
    1,900.14x = 2,622.32 × 1,340.80
  4. Step 4: Simplify right side
    1,900.14x = 3,516,006.66
  5. Step 5: Solve for x
    x = 3,516,006.66/1,900.14
  6. Step 6: Final answer
    x = 1,850.39

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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.