Home / 2,389.40-3,297.30-1,327.16

Finding the Fourth Proportional to 2,389.40, 3,297.30 and 1,327.16

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Solution

The fourth proportional to 2,389.40, 3,297.30 and 1,327.16 is: 1,831.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.40 : 3,297.30 = 1,327.16 : x
  2. Step 2: Convert to fraction form
    2,389.40/3,297.30 = 1,327.16/x
  3. Step 3: Cross multiply
    2,389.40x = 3,297.30 × 1,327.16
  4. Step 4: Simplify right side
    2,389.40x = 4,376,044.67
  5. Step 5: Solve for x
    x = 4,376,044.67/2,389.40
  6. Step 6: Final answer
    x = 1,831.44

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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.