Home / 6,739.20-10,108.80-1,809.36

Finding the Fourth Proportional to 6,739.20, 10,108.80 and 1,809.36

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Solution

The fourth proportional to 6,739.20, 10,108.80 and 1,809.36 is: 2,714.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.20 : 10,108.80 = 1,809.36 : x
  2. Step 2: Convert to fraction form
    6,739.20/10,108.80 = 1,809.36/x
  3. Step 3: Cross multiply
    6,739.20x = 10,108.80 × 1,809.36
  4. Step 4: Simplify right side
    6,739.20x = 18,290,458.37
  5. Step 5: Solve for x
    x = 18,290,458.37/6,739.20
  6. Step 6: Final answer
    x = 2,714.04

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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.