Home / 3,660.60-5,048.55-2,820.36

Finding the Fourth Proportional to 3,660.60, 5,048.55 and 2,820.36

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Solution

The fourth proportional to 3,660.60, 5,048.55 and 2,820.36 is: 3,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.60 : 5,048.55 = 2,820.36 : x
  2. Step 2: Convert to fraction form
    3,660.60/5,048.55 = 2,820.36/x
  3. Step 3: Cross multiply
    3,660.60x = 5,048.55 × 2,820.36
  4. Step 4: Simplify right side
    3,660.60x = 14,238,728.48
  5. Step 5: Solve for x
    x = 14,238,728.48/3,660.60
  6. Step 6: Final answer
    x = 3,889.73

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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.