Home / 2,757.12-4,124.64-1,888.80

Finding the Fourth Proportional to 2,757.12, 4,124.64 and 1,888.80

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Solution

The fourth proportional to 2,757.12, 4,124.64 and 1,888.80 is: 2,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.12 : 4,124.64 = 1,888.80 : x
  2. Step 2: Convert to fraction form
    2,757.12/4,124.64 = 1,888.80/x
  3. Step 3: Cross multiply
    2,757.12x = 4,124.64 × 1,888.80
  4. Step 4: Simplify right side
    2,757.12x = 7,790,620.03
  5. Step 5: Solve for x
    x = 7,790,620.03/2,757.12
  6. Step 6: Final answer
    x = 2,825.64

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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.