Home / 2,389.71-3,297.75-1,327.48

Finding the Fourth Proportional to 2,389.71, 3,297.75 and 1,327.48

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Solution

The fourth proportional to 2,389.71, 3,297.75 and 1,327.48 is: 1,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.71 : 3,297.75 = 1,327.48 : x
  2. Step 2: Convert to fraction form
    2,389.71/3,297.75 = 1,327.48/x
  3. Step 3: Cross multiply
    2,389.71x = 3,297.75 × 1,327.48
  4. Step 4: Simplify right side
    2,389.71x = 4,377,680.68
  5. Step 5: Solve for x
    x = 4,377,680.68/2,389.71
  6. Step 6: Final answer
    x = 1,831.89

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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.