Home / 2,883.41-3,977.45-1,820.80

Finding the Fourth Proportional to 2,883.41, 3,977.45 and 1,820.80

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Solution

The fourth proportional to 2,883.41, 3,977.45 and 1,820.80 is: 2,511.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.41 : 3,977.45 = 1,820.80 : x
  2. Step 2: Convert to fraction form
    2,883.41/3,977.45 = 1,820.80/x
  3. Step 3: Cross multiply
    2,883.41x = 3,977.45 × 1,820.80
  4. Step 4: Simplify right side
    2,883.41x = 7,242,111.97
  5. Step 5: Solve for x
    x = 7,242,111.97/2,883.41
  6. Step 6: Final answer
    x = 2,511.65

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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.