Home / 6,190.31-9,285.75-1,808.15

Finding the Fourth Proportional to 6,190.31, 9,285.75 and 1,808.15

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Solution

The fourth proportional to 6,190.31, 9,285.75 and 1,808.15 is: 2,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,190.31 : 9,285.75 = 1,808.15 : x
  2. Step 2: Convert to fraction form
    6,190.31/9,285.75 = 1,808.15/x
  3. Step 3: Cross multiply
    6,190.31x = 9,285.75 × 1,808.15
  4. Step 4: Simplify right side
    6,190.31x = 16,789,982.43
  5. Step 5: Solve for x
    x = 16,789,982.43/6,190.31
  6. Step 6: Final answer
    x = 2,712.30

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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.