Home / 5,409.37-8,108.52-2,117.98

Finding the Fourth Proportional to 5,409.37, 8,108.52 and 2,117.98

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Solution

The fourth proportional to 5,409.37, 8,108.52 and 2,117.98 is: 3,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.37 : 8,108.52 = 2,117.98 : x
  2. Step 2: Convert to fraction form
    5,409.37/8,108.52 = 2,117.98/x
  3. Step 3: Cross multiply
    5,409.37x = 8,108.52 × 2,117.98
  4. Step 4: Simplify right side
    5,409.37x = 17,173,683.19
  5. Step 5: Solve for x
    x = 17,173,683.19/5,409.37
  6. Step 6: Final answer
    x = 3,174.80

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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.