Home / 6,427.83-9,640.40-1,809.75

Finding the Fourth Proportional to 6,427.83, 9,640.40 and 1,809.75

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Solution

The fourth proportional to 6,427.83, 9,640.40 and 1,809.75 is: 2,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.83 : 9,640.40 = 1,809.75 : x
  2. Step 2: Convert to fraction form
    6,427.83/9,640.40 = 1,809.75/x
  3. Step 3: Cross multiply
    6,427.83x = 9,640.40 × 1,809.75
  4. Step 4: Simplify right side
    6,427.83x = 17,446,704.85
  5. Step 5: Solve for x
    x = 17,446,704.85/6,427.83
  6. Step 6: Final answer
    x = 2,714.24

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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.