Home / 1,936.85-2,673.62-1,307.75

Finding the Fourth Proportional to 1,936.85, 2,673.62 and 1,307.75

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Solution

The fourth proportional to 1,936.85, 2,673.62 and 1,307.75 is: 1,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.85 : 2,673.62 = 1,307.75 : x
  2. Step 2: Convert to fraction form
    1,936.85/2,673.62 = 1,307.75/x
  3. Step 3: Cross multiply
    1,936.85x = 2,673.62 × 1,307.75
  4. Step 4: Simplify right side
    1,936.85x = 3,496,420.02
  5. Step 5: Solve for x
    x = 3,496,420.02/1,936.85
  6. Step 6: Final answer
    x = 1,805.21

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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.