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Finding the Fourth Proportional to 5,890.32, 8,128.86 and 3,237.98

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Solution

The fourth proportional to 5,890.32, 8,128.86 and 3,237.98 is: 4,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.32 : 8,128.86 = 3,237.98 : x
  2. Step 2: Convert to fraction form
    5,890.32/8,128.86 = 3,237.98/x
  3. Step 3: Cross multiply
    5,890.32x = 8,128.86 × 3,237.98
  4. Step 4: Simplify right side
    5,890.32x = 26,321,086.10
  5. Step 5: Solve for x
    x = 26,321,086.10/5,890.32
  6. Step 6: Final answer
    x = 4,468.53

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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.