Home / 1,936.45-2,677.49-1,690.42

Finding the Fourth Proportional to 1,936.45, 2,677.49 and 1,690.42

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Solution

The fourth proportional to 1,936.45, 2,677.49 and 1,690.42 is: 2,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.45 : 2,677.49 = 1,690.42 : x
  2. Step 2: Convert to fraction form
    1,936.45/2,677.49 = 1,690.42/x
  3. Step 3: Cross multiply
    1,936.45x = 2,677.49 × 1,690.42
  4. Step 4: Simplify right side
    1,936.45x = 4,526,074.19
  5. Step 5: Solve for x
    x = 4,526,074.19/1,936.45
  6. Step 6: Final answer
    x = 2,337.30

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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.