Home / 2,554.32-3,831.74-1,909.14

Finding the Fourth Proportional to 2,554.32, 3,831.74 and 1,909.14

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Solution

The fourth proportional to 2,554.32, 3,831.74 and 1,909.14 is: 2,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.32 : 3,831.74 = 1,909.14 : x
  2. Step 2: Convert to fraction form
    2,554.32/3,831.74 = 1,909.14/x
  3. Step 3: Cross multiply
    2,554.32x = 3,831.74 × 1,909.14
  4. Step 4: Simplify right side
    2,554.32x = 7,315,328.10
  5. Step 5: Solve for x
    x = 7,315,328.10/2,554.32
  6. Step 6: Final answer
    x = 2,863.90

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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.