Home / 3,788.12-5,680.80-1,322.48

Finding the Fourth Proportional to 3,788.12, 5,680.80 and 1,322.48

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Solution

The fourth proportional to 3,788.12, 5,680.80 and 1,322.48 is: 1,983.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.12 : 5,680.80 = 1,322.48 : x
  2. Step 2: Convert to fraction form
    3,788.12/5,680.80 = 1,322.48/x
  3. Step 3: Cross multiply
    3,788.12x = 5,680.80 × 1,322.48
  4. Step 4: Simplify right side
    3,788.12x = 7,512,744.38
  5. Step 5: Solve for x
    x = 7,512,744.38/3,788.12
  6. Step 6: Final answer
    x = 1,983.24

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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.