Home / 6,783.21-10,171.14-2,101.20

Finding the Fourth Proportional to 6,783.21, 10,171.14 and 2,101.20

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Solution

The fourth proportional to 6,783.21, 10,171.14 and 2,101.20 is: 3,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783.21 : 10,171.14 = 2,101.20 : x
  2. Step 2: Convert to fraction form
    6,783.21/10,171.14 = 2,101.20/x
  3. Step 3: Cross multiply
    6,783.21x = 10,171.14 × 2,101.20
  4. Step 4: Simplify right side
    6,783.21x = 21,371,599.37
  5. Step 5: Solve for x
    x = 21,371,599.37/6,783.21
  6. Step 6: Final answer
    x = 3,150.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.