Home / 6,784.21-10,172.64-2,102.20

Finding the Fourth Proportional to 6,784.21, 10,172.64 and 2,102.20

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Solution

The fourth proportional to 6,784.21, 10,172.64 and 2,102.20 is: 3,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,784.21 : 10,172.64 = 2,102.20 : x
  2. Step 2: Convert to fraction form
    6,784.21/10,172.64 = 2,102.20/x
  3. Step 3: Cross multiply
    6,784.21x = 10,172.64 × 2,102.20
  4. Step 4: Simplify right side
    6,784.21x = 21,384,923.81
  5. Step 5: Solve for x
    x = 21,384,923.81/6,784.21
  6. Step 6: Final answer
    x = 3,152.16

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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.