Home / 3,851.69-5,780.30-2,880.36

Finding the Fourth Proportional to 3,851.69, 5,780.30 and 2,880.36

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Solution

The fourth proportional to 3,851.69, 5,780.30 and 2,880.36 is: 4,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.69 : 5,780.30 = 2,880.36 : x
  2. Step 2: Convert to fraction form
    3,851.69/5,780.30 = 2,880.36/x
  3. Step 3: Cross multiply
    3,851.69x = 5,780.30 × 2,880.36
  4. Step 4: Simplify right side
    3,851.69x = 16,649,330.51
  5. Step 5: Solve for x
    x = 16,649,330.51/3,851.69
  6. Step 6: Final answer
    x = 4,322.61

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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.