Home / 2,860.15-4,287.03-1,297.81

Finding the Fourth Proportional to 2,860.15, 4,287.03 and 1,297.81

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Solution

The fourth proportional to 2,860.15, 4,287.03 and 1,297.81 is: 1,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.15 : 4,287.03 = 1,297.81 : x
  2. Step 2: Convert to fraction form
    2,860.15/4,287.03 = 1,297.81/x
  3. Step 3: Cross multiply
    2,860.15x = 4,287.03 × 1,297.81
  4. Step 4: Simplify right side
    2,860.15x = 5,563,728.97
  5. Step 5: Solve for x
    x = 5,563,728.97/2,860.15
  6. Step 6: Final answer
    x = 1,945.26

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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.