Home / 2,815-3,884.94-1,573.24

Finding the Fourth Proportional to 2,815, 3,884.94 and 1,573.24

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Solution

The fourth proportional to 2,815, 3,884.94 and 1,573.24 is: 2,171.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815 : 3,884.94 = 1,573.24 : x
  2. Step 2: Convert to fraction form
    2,815/3,884.94 = 1,573.24/x
  3. Step 3: Cross multiply
    2,815x = 3,884.94 × 1,573.24
  4. Step 4: Simplify right side
    2,815x = 6,111,943.01
  5. Step 5: Solve for x
    x = 6,111,943.01/2,815
  6. Step 6: Final answer
    x = 2,171.21

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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.