Home / 2,007.72-2,768.51-1,379.16

Finding the Fourth Proportional to 2,007.72, 2,768.51 and 1,379.16

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Solution

The fourth proportional to 2,007.72, 2,768.51 and 1,379.16 is: 1,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.72 : 2,768.51 = 1,379.16 : x
  2. Step 2: Convert to fraction form
    2,007.72/2,768.51 = 1,379.16/x
  3. Step 3: Cross multiply
    2,007.72x = 2,768.51 × 1,379.16
  4. Step 4: Simplify right side
    2,007.72x = 3,818,197.51
  5. Step 5: Solve for x
    x = 3,818,197.51/2,007.72
  6. Step 6: Final answer
    x = 1,901.76

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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.