Home / 3,518.61-5,262.41-3,131.34

Finding the Fourth Proportional to 3,518.61, 5,262.41 and 3,131.34

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Solution

The fourth proportional to 3,518.61, 5,262.41 and 3,131.34 is: 4,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.61 : 5,262.41 = 3,131.34 : x
  2. Step 2: Convert to fraction form
    3,518.61/5,262.41 = 3,131.34/x
  3. Step 3: Cross multiply
    3,518.61x = 5,262.41 × 3,131.34
  4. Step 4: Simplify right side
    3,518.61x = 16,478,379.27
  5. Step 5: Solve for x
    x = 16,478,379.27/3,518.61
  6. Step 6: Final answer
    x = 4,683.21

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1.5x scale

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.