Home / 5,890.48-8,129.39-3,238.40

Finding the Fourth Proportional to 5,890.48, 8,129.39 and 3,238.40

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Solution

The fourth proportional to 5,890.48, 8,129.39 and 3,238.40 is: 4,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.48 : 8,129.39 = 3,238.40 : x
  2. Step 2: Convert to fraction form
    5,890.48/8,129.39 = 3,238.40/x
  3. Step 3: Cross multiply
    5,890.48x = 8,129.39 × 3,238.40
  4. Step 4: Simplify right side
    5,890.48x = 26,326,216.58
  5. Step 5: Solve for x
    x = 26,326,216.58/5,890.48
  6. Step 6: Final answer
    x = 4,469.28

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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.