Home / 3,819.93-5,271.87-2,141.34

Finding the Fourth Proportional to 3,819.93, 5,271.87 and 2,141.34

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Solution

The fourth proportional to 3,819.93, 5,271.87 and 2,141.34 is: 2,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.93 : 5,271.87 = 2,141.34 : x
  2. Step 2: Convert to fraction form
    3,819.93/5,271.87 = 2,141.34/x
  3. Step 3: Cross multiply
    3,819.93x = 5,271.87 × 2,141.34
  4. Step 4: Simplify right side
    3,819.93x = 11,288,866.11
  5. Step 5: Solve for x
    x = 11,288,866.11/3,819.93
  6. Step 6: Final answer
    x = 2,955.25

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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.