Home / 2,825.81-4,239.66-1,266.89

Finding the Fourth Proportional to 2,825.81, 4,239.66 and 1,266.89

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Solution

The fourth proportional to 2,825.81, 4,239.66 and 1,266.89 is: 1,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.81 : 4,239.66 = 1,266.89 : x
  2. Step 2: Convert to fraction form
    2,825.81/4,239.66 = 1,266.89/x
  3. Step 3: Cross multiply
    2,825.81x = 4,239.66 × 1,266.89
  4. Step 4: Simplify right side
    2,825.81x = 5,371,161.66
  5. Step 5: Solve for x
    x = 5,371,161.66/2,825.81
  6. Step 6: Final answer
    x = 1,900.75

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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.