Home / 1,899.07-2,620.73-1,102.43

Finding the Fourth Proportional to 1,899.07, 2,620.73 and 1,102.43

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Solution

The fourth proportional to 1,899.07, 2,620.73 and 1,102.43 is: 1,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.07 : 2,620.73 = 1,102.43 : x
  2. Step 2: Convert to fraction form
    1,899.07/2,620.73 = 1,102.43/x
  3. Step 3: Cross multiply
    1,899.07x = 2,620.73 × 1,102.43
  4. Step 4: Simplify right side
    1,899.07x = 2,889,180.68
  5. Step 5: Solve for x
    x = 2,889,180.68/1,899.07
  6. Step 6: Final answer
    x = 1,521.37

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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.