Home / 6,102.51-8,420.90-3,450.12

Finding the Fourth Proportional to 6,102.51, 8,420.90 and 3,450.12

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Solution

The fourth proportional to 6,102.51, 8,420.90 and 3,450.12 is: 4,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,102.51 : 8,420.90 = 3,450.12 : x
  2. Step 2: Convert to fraction form
    6,102.51/8,420.90 = 3,450.12/x
  3. Step 3: Cross multiply
    6,102.51x = 8,420.90 × 3,450.12
  4. Step 4: Simplify right side
    6,102.51x = 29,053,098.26
  5. Step 5: Solve for x
    x = 29,053,098.26/6,102.51
  6. Step 6: Final answer
    x = 4,760.84

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Half scale
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Double scale
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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.