Home / 6,879.21-10,318.73-1,685.13

Finding the Fourth Proportional to 6,879.21, 10,318.73 and 1,685.13

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Solution

The fourth proportional to 6,879.21, 10,318.73 and 1,685.13 is: 2,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.21 : 10,318.73 = 1,685.13 : x
  2. Step 2: Convert to fraction form
    6,879.21/10,318.73 = 1,685.13/x
  3. Step 3: Cross multiply
    6,879.21x = 10,318.73 × 1,685.13
  4. Step 4: Simplify right side
    6,879.21x = 17,388,393.06
  5. Step 5: Solve for x
    x = 17,388,393.06/6,879.21
  6. Step 6: Final answer
    x = 2,527.67

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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.