Home / 6,439.26-8,887.81-3,646.38

Finding the Fourth Proportional to 6,439.26, 8,887.81 and 3,646.38

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Solution

The fourth proportional to 6,439.26, 8,887.81 and 3,646.38 is: 5,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.26 : 8,887.81 = 3,646.38 : x
  2. Step 2: Convert to fraction form
    6,439.26/8,887.81 = 3,646.38/x
  3. Step 3: Cross multiply
    6,439.26x = 8,887.81 × 3,646.38
  4. Step 4: Simplify right side
    6,439.26x = 32,408,332.63
  5. Step 5: Solve for x
    x = 32,408,332.63/6,439.26
  6. Step 6: Final answer
    x = 5,032.93

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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.