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Finding the Fourth Proportional to 5,804.97, 8,009.55 and 3,920.01

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Solution

The fourth proportional to 5,804.97, 8,009.55 and 3,920.01 is: 5,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,804.97 : 8,009.55 = 3,920.01 : x
  2. Step 2: Convert to fraction form
    5,804.97/8,009.55 = 3,920.01/x
  3. Step 3: Cross multiply
    5,804.97x = 8,009.55 × 3,920.01
  4. Step 4: Simplify right side
    5,804.97x = 31,397,516.10
  5. Step 5: Solve for x
    x = 31,397,516.10/5,804.97
  6. Step 6: Final answer
    x = 5,408.73

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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.