Home / 6,090.36-9,120.82-3,485.40

Finding the Fourth Proportional to 6,090.36, 9,120.82 and 3,485.40

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Solution

The fourth proportional to 6,090.36, 9,120.82 and 3,485.40 is: 5,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090.36 : 9,120.82 = 3,485.40 : x
  2. Step 2: Convert to fraction form
    6,090.36/9,120.82 = 3,485.40/x
  3. Step 3: Cross multiply
    6,090.36x = 9,120.82 × 3,485.40
  4. Step 4: Simplify right side
    6,090.36x = 31,789,706.03
  5. Step 5: Solve for x
    x = 31,789,706.03/6,090.36
  6. Step 6: Final answer
    x = 5,219.68

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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.