Home / 5,653.80-8,481.60-1,758.78

Finding the Fourth Proportional to 5,653.80, 8,481.60 and 1,758.78

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Solution

The fourth proportional to 5,653.80, 8,481.60 and 1,758.78 is: 2,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.80 : 8,481.60 = 1,758.78 : x
  2. Step 2: Convert to fraction form
    5,653.80/8,481.60 = 1,758.78/x
  3. Step 3: Cross multiply
    5,653.80x = 8,481.60 × 1,758.78
  4. Step 4: Simplify right side
    5,653.80x = 14,917,268.45
  5. Step 5: Solve for x
    x = 14,917,268.45/5,653.80
  6. Step 6: Final answer
    x = 2,638.45

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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.