Home / 2,860.81-4,283.92-1,396.13

Finding the Fourth Proportional to 2,860.81, 4,283.92 and 1,396.13

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Solution

The fourth proportional to 2,860.81, 4,283.92 and 1,396.13 is: 2,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.81 : 4,283.92 = 1,396.13 : x
  2. Step 2: Convert to fraction form
    2,860.81/4,283.92 = 1,396.13/x
  3. Step 3: Cross multiply
    2,860.81x = 4,283.92 × 1,396.13
  4. Step 4: Simplify right side
    2,860.81x = 5,980,889.56
  5. Step 5: Solve for x
    x = 5,980,889.56/2,860.81
  6. Step 6: Final answer
    x = 2,090.63

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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.