Home / 1,684.97-2,536.55-1,515.43

Finding the Fourth Proportional to 1,684.97, 2,536.55 and 1,515.43

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Solution

The fourth proportional to 1,684.97, 2,536.55 and 1,515.43 is: 2,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.97 : 2,536.55 = 1,515.43 : x
  2. Step 2: Convert to fraction form
    1,684.97/2,536.55 = 1,515.43/x
  3. Step 3: Cross multiply
    1,684.97x = 2,536.55 × 1,515.43
  4. Step 4: Simplify right side
    1,684.97x = 3,843,977.27
  5. Step 5: Solve for x
    x = 3,843,977.27/1,684.97
  6. Step 6: Final answer
    x = 2,281.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.