Home / 2,775.43-3,828.41-1,830.88

Finding the Fourth Proportional to 2,775.43, 3,828.41 and 1,830.88

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Solution

The fourth proportional to 2,775.43, 3,828.41 and 1,830.88 is: 2,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.43 : 3,828.41 = 1,830.88 : x
  2. Step 2: Convert to fraction form
    2,775.43/3,828.41 = 1,830.88/x
  3. Step 3: Cross multiply
    2,775.43x = 3,828.41 × 1,830.88
  4. Step 4: Simplify right side
    2,775.43x = 7,009,366.95
  5. Step 5: Solve for x
    x = 7,009,366.95/2,775.43
  6. Step 6: Final answer
    x = 2,525.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.