Home / 3,021.78-4,170.27-1,827.06

Finding the Fourth Proportional to 3,021.78, 4,170.27 and 1,827.06

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Solution

The fourth proportional to 3,021.78, 4,170.27 and 1,827.06 is: 2,521.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.78 : 4,170.27 = 1,827.06 : x
  2. Step 2: Convert to fraction form
    3,021.78/4,170.27 = 1,827.06/x
  3. Step 3: Cross multiply
    3,021.78x = 4,170.27 × 1,827.06
  4. Step 4: Simplify right side
    3,021.78x = 7,619,333.51
  5. Step 5: Solve for x
    x = 7,619,333.51/3,021.78
  6. Step 6: Final answer
    x = 2,521.47

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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.