Home / 3,118.44-4,677.78-1,038.66

Finding the Fourth Proportional to 3,118.44, 4,677.78 and 1,038.66

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Solution

The fourth proportional to 3,118.44, 4,677.78 and 1,038.66 is: 1,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.44 : 4,677.78 = 1,038.66 : x
  2. Step 2: Convert to fraction form
    3,118.44/4,677.78 = 1,038.66/x
  3. Step 3: Cross multiply
    3,118.44x = 4,677.78 × 1,038.66
  4. Step 4: Simplify right side
    3,118.44x = 4,858,622.97
  5. Step 5: Solve for x
    x = 4,858,622.97/3,118.44
  6. Step 6: Final answer
    x = 1,558.03

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1.5x scale

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.