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Finding the Fourth Proportional to 1,950.63, 2,900.87 and 1,889.12

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Solution

The fourth proportional to 1,950.63, 2,900.87 and 1,889.12 is: 2,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.63 : 2,900.87 = 1,889.12 : x
  2. Step 2: Convert to fraction form
    1,950.63/2,900.87 = 1,889.12/x
  3. Step 3: Cross multiply
    1,950.63x = 2,900.87 × 1,889.12
  4. Step 4: Simplify right side
    1,950.63x = 5,480,067.58
  5. Step 5: Solve for x
    x = 5,480,067.58/1,950.63
  6. Step 6: Final answer
    x = 2,809.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.