Home / 3,880.32-5,820.48-1,282.56

Finding the Fourth Proportional to 3,880.32, 5,820.48 and 1,282.56

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Solution

The fourth proportional to 3,880.32, 5,820.48 and 1,282.56 is: 1,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.32 : 5,820.48 = 1,282.56 : x
  2. Step 2: Convert to fraction form
    3,880.32/5,820.48 = 1,282.56/x
  3. Step 3: Cross multiply
    3,880.32x = 5,820.48 × 1,282.56
  4. Step 4: Simplify right side
    3,880.32x = 7,465,114.83
  5. Step 5: Solve for x
    x = 7,465,114.83/3,880.32
  6. Step 6: Final answer
    x = 1,923.84

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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.