Home / 1,908.21-2,858.85-1,901.29

Finding the Fourth Proportional to 1,908.21, 2,858.85 and 1,901.29

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Solution

The fourth proportional to 1,908.21, 2,858.85 and 1,901.29 is: 2,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.21 : 2,858.85 = 1,901.29 : x
  2. Step 2: Convert to fraction form
    1,908.21/2,858.85 = 1,901.29/x
  3. Step 3: Cross multiply
    1,908.21x = 2,858.85 × 1,901.29
  4. Step 4: Simplify right side
    1,908.21x = 5,435,507.67
  5. Step 5: Solve for x
    x = 5,435,507.67/1,908.21
  6. Step 6: Final answer
    x = 2,848.49

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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.