Home / 3,678.74-5,076.29-2,085.26

Finding the Fourth Proportional to 3,678.74, 5,076.29 and 2,085.26

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Solution

The fourth proportional to 3,678.74, 5,076.29 and 2,085.26 is: 2,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.74 : 5,076.29 = 2,085.26 : x
  2. Step 2: Convert to fraction form
    3,678.74/5,076.29 = 2,085.26/x
  3. Step 3: Cross multiply
    3,678.74x = 5,076.29 × 2,085.26
  4. Step 4: Simplify right side
    3,678.74x = 10,585,348.68
  5. Step 5: Solve for x
    x = 10,585,348.68/3,678.74
  6. Step 6: Final answer
    x = 2,877.44

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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.