Home / 6,879.42-10,319.16-1,685.28

Finding the Fourth Proportional to 6,879.42, 10,319.16 and 1,685.28

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Solution

The fourth proportional to 6,879.42, 10,319.16 and 1,685.28 is: 2,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.42 : 10,319.16 = 1,685.28 : x
  2. Step 2: Convert to fraction form
    6,879.42/10,319.16 = 1,685.28/x
  3. Step 3: Cross multiply
    6,879.42x = 10,319.16 × 1,685.28
  4. Step 4: Simplify right side
    6,879.42x = 17,390,673.96
  5. Step 5: Solve for x
    x = 17,390,673.96/6,879.42
  6. Step 6: Final answer
    x = 2,527.93

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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.