Home / 2,085.84-3,120.66-1,434.60

Finding the Fourth Proportional to 2,085.84, 3,120.66 and 1,434.60

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Solution

The fourth proportional to 2,085.84, 3,120.66 and 1,434.60 is: 2,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.84 : 3,120.66 = 1,434.60 : x
  2. Step 2: Convert to fraction form
    2,085.84/3,120.66 = 1,434.60/x
  3. Step 3: Cross multiply
    2,085.84x = 3,120.66 × 1,434.60
  4. Step 4: Simplify right side
    2,085.84x = 4,476,898.84
  5. Step 5: Solve for x
    x = 4,476,898.84/2,085.84
  6. Step 6: Final answer
    x = 2,146.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.