Home / 1,551.84-2,128.71-1,519.44

Finding the Fourth Proportional to 1,551.84, 2,128.71 and 1,519.44

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Solution

The fourth proportional to 1,551.84, 2,128.71 and 1,519.44 is: 2,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.84 : 2,128.71 = 1,519.44 : x
  2. Step 2: Convert to fraction form
    1,551.84/2,128.71 = 1,519.44/x
  3. Step 3: Cross multiply
    1,551.84x = 2,128.71 × 1,519.44
  4. Step 4: Simplify right side
    1,551.84x = 3,234,447.12
  5. Step 5: Solve for x
    x = 3,234,447.12/1,551.84
  6. Step 6: Final answer
    x = 2,084.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.