Home / 3,924.95-5,416.43-2,156.67

Finding the Fourth Proportional to 3,924.95, 5,416.43 and 2,156.67

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Solution

The fourth proportional to 3,924.95, 5,416.43 and 2,156.67 is: 2,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.95 : 5,416.43 = 2,156.67 : x
  2. Step 2: Convert to fraction form
    3,924.95/5,416.43 = 2,156.67/x
  3. Step 3: Cross multiply
    3,924.95x = 5,416.43 × 2,156.67
  4. Step 4: Simplify right side
    3,924.95x = 11,681,453.44
  5. Step 5: Solve for x
    x = 11,681,453.44/3,924.95
  6. Step 6: Final answer
    x = 2,976.20

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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.