Home / 2,820.20-3,889.34-1,824.44

Finding the Fourth Proportional to 2,820.20, 3,889.34 and 1,824.44

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Solution

The fourth proportional to 2,820.20, 3,889.34 and 1,824.44 is: 2,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.20 : 3,889.34 = 1,824.44 : x
  2. Step 2: Convert to fraction form
    2,820.20/3,889.34 = 1,824.44/x
  3. Step 3: Cross multiply
    2,820.20x = 3,889.34 × 1,824.44
  4. Step 4: Simplify right side
    2,820.20x = 7,095,838.90
  5. Step 5: Solve for x
    x = 7,095,838.90/2,820.20
  6. Step 6: Final answer
    x = 2,516.08

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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.