Home / 3,106.50-4,659.78-1,054.50

Finding the Fourth Proportional to 3,106.50, 4,659.78 and 1,054.50

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Solution

The fourth proportional to 3,106.50, 4,659.78 and 1,054.50 is: 1,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.50 : 4,659.78 = 1,054.50 : x
  2. Step 2: Convert to fraction form
    3,106.50/4,659.78 = 1,054.50/x
  3. Step 3: Cross multiply
    3,106.50x = 4,659.78 × 1,054.50
  4. Step 4: Simplify right side
    3,106.50x = 4,913,738.01
  5. Step 5: Solve for x
    x = 4,913,738.01/3,106.50
  6. Step 6: Final answer
    x = 1,581.76

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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.