Home / 1,851.21-2,554.38-1,065.11

Finding the Fourth Proportional to 1,851.21, 2,554.38 and 1,065.11

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Solution

The fourth proportional to 1,851.21, 2,554.38 and 1,065.11 is: 1,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.21 : 2,554.38 = 1,065.11 : x
  2. Step 2: Convert to fraction form
    1,851.21/2,554.38 = 1,065.11/x
  3. Step 3: Cross multiply
    1,851.21x = 2,554.38 × 1,065.11
  4. Step 4: Simplify right side
    1,851.21x = 2,720,682.91
  5. Step 5: Solve for x
    x = 2,720,682.91/1,851.21
  6. Step 6: Final answer
    x = 1,469.68

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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.