Home / 3,360.45-4,634.49-2,415.78

Finding the Fourth Proportional to 3,360.45, 4,634.49 and 2,415.78

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Solution

The fourth proportional to 3,360.45, 4,634.49 and 2,415.78 is: 3,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.45 : 4,634.49 = 2,415.78 : x
  2. Step 2: Convert to fraction form
    3,360.45/4,634.49 = 2,415.78/x
  3. Step 3: Cross multiply
    3,360.45x = 4,634.49 × 2,415.78
  4. Step 4: Simplify right side
    3,360.45x = 11,195,908.25
  5. Step 5: Solve for x
    x = 11,195,908.25/3,360.45
  6. Step 6: Final answer
    x = 3,331.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.