Home / 2,551.91-3,828.63-2,111.16

Finding the Fourth Proportional to 2,551.91, 3,828.63 and 2,111.16

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Solution

The fourth proportional to 2,551.91, 3,828.63 and 2,111.16 is: 3,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.91 : 3,828.63 = 2,111.16 : x
  2. Step 2: Convert to fraction form
    2,551.91/3,828.63 = 2,111.16/x
  3. Step 3: Cross multiply
    2,551.91x = 3,828.63 × 2,111.16
  4. Step 4: Simplify right side
    2,551.91x = 8,082,854.97
  5. Step 5: Solve for x
    x = 8,082,854.97/2,551.91
  6. Step 6: Final answer
    x = 3,167.38

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1.5x scale

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.