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Finding the Fourth Proportional to 1,908.70, 2,848.56 and 1,859.49

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Solution

The fourth proportional to 1,908.70, 2,848.56 and 1,859.49 is: 2,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.70 : 2,848.56 = 1,859.49 : x
  2. Step 2: Convert to fraction form
    1,908.70/2,848.56 = 1,859.49/x
  3. Step 3: Cross multiply
    1,908.70x = 2,848.56 × 1,859.49
  4. Step 4: Simplify right side
    1,908.70x = 5,296,859.54
  5. Step 5: Solve for x
    x = 5,296,859.54/1,908.70
  6. Step 6: Final answer
    x = 2,775.12

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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.