Home / 4,936.10-7,420.35-3,485.30

Finding the Fourth Proportional to 4,936.10, 7,420.35 and 3,485.30

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Solution

The fourth proportional to 4,936.10, 7,420.35 and 3,485.30 is: 5,239.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.10 : 7,420.35 = 3,485.30 : x
  2. Step 2: Convert to fraction form
    4,936.10/7,420.35 = 3,485.30/x
  3. Step 3: Cross multiply
    4,936.10x = 7,420.35 × 3,485.30
  4. Step 4: Simplify right side
    4,936.10x = 25,862,145.86
  5. Step 5: Solve for x
    x = 25,862,145.86/4,936.10
  6. Step 6: Final answer
    x = 5,239.39

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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.