Home / 3,851.52-5,315.07-2,083.12

Finding the Fourth Proportional to 3,851.52, 5,315.07 and 2,083.12

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Solution

The fourth proportional to 3,851.52, 5,315.07 and 2,083.12 is: 2,874.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.52 : 5,315.07 = 2,083.12 : x
  2. Step 2: Convert to fraction form
    3,851.52/5,315.07 = 2,083.12/x
  3. Step 3: Cross multiply
    3,851.52x = 5,315.07 × 2,083.12
  4. Step 4: Simplify right side
    3,851.52x = 11,071,928.62
  5. Step 5: Solve for x
    x = 11,071,928.62/3,851.52
  6. Step 6: Final answer
    x = 2,874.69

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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.