Home / 9,190.35-13,778.78-2,946.78

Finding the Fourth Proportional to 9,190.35, 13,778.78 and 2,946.78

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Solution

The fourth proportional to 9,190.35, 13,778.78 and 2,946.78 is: 4,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.35 : 13,778.78 = 2,946.78 : x
  2. Step 2: Convert to fraction form
    9,190.35/13,778.78 = 2,946.78/x
  3. Step 3: Cross multiply
    9,190.35x = 13,778.78 × 2,946.78
  4. Step 4: Simplify right side
    9,190.35x = 40,603,018.59
  5. Step 5: Solve for x
    x = 40,603,018.59/9,190.35
  6. Step 6: Final answer
    x = 4,418.01

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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.