Home / 3,820.16-5,271.48-2,141.34

Finding the Fourth Proportional to 3,820.16, 5,271.48 and 2,141.34

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Solution

The fourth proportional to 3,820.16, 5,271.48 and 2,141.34 is: 2,954.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.16 : 5,271.48 = 2,141.34 : x
  2. Step 2: Convert to fraction form
    3,820.16/5,271.48 = 2,141.34/x
  3. Step 3: Cross multiply
    3,820.16x = 5,271.48 × 2,141.34
  4. Step 4: Simplify right side
    3,820.16x = 11,288,030.98
  5. Step 5: Solve for x
    x = 11,288,030.98/3,820.16
  6. Step 6: Final answer
    x = 2,954.86

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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.