Home / 3,106.60-4,660.86-1,376.68

Finding the Fourth Proportional to 3,106.60, 4,660.86 and 1,376.68

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Solution

The fourth proportional to 3,106.60, 4,660.86 and 1,376.68 is: 2,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.60 : 4,660.86 = 1,376.68 : x
  2. Step 2: Convert to fraction form
    3,106.60/4,660.86 = 1,376.68/x
  3. Step 3: Cross multiply
    3,106.60x = 4,660.86 × 1,376.68
  4. Step 4: Simplify right side
    3,106.60x = 6,416,512.74
  5. Step 5: Solve for x
    x = 6,416,512.74/3,106.60
  6. Step 6: Final answer
    x = 2,065.45

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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.