Home / 6,879.19-10,318.98-1,685.06

Finding the Fourth Proportional to 6,879.19, 10,318.98 and 1,685.06

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Solution

The fourth proportional to 6,879.19, 10,318.98 and 1,685.06 is: 2,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.19 : 10,318.98 = 1,685.06 : x
  2. Step 2: Convert to fraction form
    6,879.19/10,318.98 = 1,685.06/x
  3. Step 3: Cross multiply
    6,879.19x = 10,318.98 × 1,685.06
  4. Step 4: Simplify right side
    6,879.19x = 17,388,100.44
  5. Step 5: Solve for x
    x = 17,388,100.44/6,879.19
  6. Step 6: Final answer
    x = 2,527.64

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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.