Home / 2,005.13-2,768.49-1,631.51

Finding the Fourth Proportional to 2,005.13, 2,768.49 and 1,631.51

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Solution

The fourth proportional to 2,005.13, 2,768.49 and 1,631.51 is: 2,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.13 : 2,768.49 = 1,631.51 : x
  2. Step 2: Convert to fraction form
    2,005.13/2,768.49 = 1,631.51/x
  3. Step 3: Cross multiply
    2,005.13x = 2,768.49 × 1,631.51
  4. Step 4: Simplify right side
    2,005.13x = 4,516,819.12
  5. Step 5: Solve for x
    x = 4,516,819.12/2,005.13
  6. Step 6: Final answer
    x = 2,252.63

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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.