Home / 2,389.80-3,297.87-1,341.75

Finding the Fourth Proportional to 2,389.80, 3,297.87 and 1,341.75

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Solution

The fourth proportional to 2,389.80, 3,297.87 and 1,341.75 is: 1,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.80 : 3,297.87 = 1,341.75 : x
  2. Step 2: Convert to fraction form
    2,389.80/3,297.87 = 1,341.75/x
  3. Step 3: Cross multiply
    2,389.80x = 3,297.87 × 1,341.75
  4. Step 4: Simplify right side
    2,389.80x = 4,424,917.07
  5. Step 5: Solve for x
    x = 4,424,917.07/2,389.80
  6. Step 6: Final answer
    x = 1,851.58

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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.