Home / 5,591.64-8,389.44-3,128.58

Finding the Fourth Proportional to 5,591.64, 8,389.44 and 3,128.58

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Solution

The fourth proportional to 5,591.64, 8,389.44 and 3,128.58 is: 4,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.64 : 8,389.44 = 3,128.58 : x
  2. Step 2: Convert to fraction form
    5,591.64/8,389.44 = 3,128.58/x
  3. Step 3: Cross multiply
    5,591.64x = 8,389.44 × 3,128.58
  4. Step 4: Simplify right side
    5,591.64x = 26,247,034.20
  5. Step 5: Solve for x
    x = 26,247,034.20/5,591.64
  6. Step 6: Final answer
    x = 4,693.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.