Home / 5,131.77-7,697.98-2,169.66

Finding the Fourth Proportional to 5,131.77, 7,697.98 and 2,169.66

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Solution

The fourth proportional to 5,131.77, 7,697.98 and 2,169.66 is: 3,254.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.77 : 7,697.98 = 2,169.66 : x
  2. Step 2: Convert to fraction form
    5,131.77/7,697.98 = 2,169.66/x
  3. Step 3: Cross multiply
    5,131.77x = 7,697.98 × 2,169.66
  4. Step 4: Simplify right side
    5,131.77x = 16,701,988.44
  5. Step 5: Solve for x
    x = 16,701,988.44/5,131.77
  6. Step 6: Final answer
    x = 3,254.63

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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.