Home / 5,416.58-8,124.06-2,131.90

Finding the Fourth Proportional to 5,416.58, 8,124.06 and 2,131.90

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Solution

The fourth proportional to 5,416.58, 8,124.06 and 2,131.90 is: 3,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.58 : 8,124.06 = 2,131.90 : x
  2. Step 2: Convert to fraction form
    5,416.58/8,124.06 = 2,131.90/x
  3. Step 3: Cross multiply
    5,416.58x = 8,124.06 × 2,131.90
  4. Step 4: Simplify right side
    5,416.58x = 17,319,683.51
  5. Step 5: Solve for x
    x = 17,319,683.51/5,416.58
  6. Step 6: Final answer
    x = 3,197.53

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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.