Home / 5,440.86-8,161.77-1,977.18

Finding the Fourth Proportional to 5,440.86, 8,161.77 and 1,977.18

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Solution

The fourth proportional to 5,440.86, 8,161.77 and 1,977.18 is: 2,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.86 : 8,161.77 = 1,977.18 : x
  2. Step 2: Convert to fraction form
    5,440.86/8,161.77 = 1,977.18/x
  3. Step 3: Cross multiply
    5,440.86x = 8,161.77 × 1,977.18
  4. Step 4: Simplify right side
    5,440.86x = 16,137,288.41
  5. Step 5: Solve for x
    x = 16,137,288.41/5,440.86
  6. Step 6: Final answer
    x = 2,965.94

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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.