Home / 3,820.04-5,271.60-2,141.60

Finding the Fourth Proportional to 3,820.04, 5,271.60 and 2,141.60

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Solution

The fourth proportional to 3,820.04, 5,271.60 and 2,141.60 is: 2,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.04 : 5,271.60 = 2,141.60 : x
  2. Step 2: Convert to fraction form
    3,820.04/5,271.60 = 2,141.60/x
  3. Step 3: Cross multiply
    3,820.04x = 5,271.60 × 2,141.60
  4. Step 4: Simplify right side
    3,820.04x = 11,289,658.56
  5. Step 5: Solve for x
    x = 11,289,658.56/3,820.04
  6. Step 6: Final answer
    x = 2,955.38

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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.