Home / 3,876.99-5,814.45-1,685.22

Finding the Fourth Proportional to 3,876.99, 5,814.45 and 1,685.22

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Solution

The fourth proportional to 3,876.99, 5,814.45 and 1,685.22 is: 2,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.99 : 5,814.45 = 1,685.22 : x
  2. Step 2: Convert to fraction form
    3,876.99/5,814.45 = 1,685.22/x
  3. Step 3: Cross multiply
    3,876.99x = 5,814.45 × 1,685.22
  4. Step 4: Simplify right side
    3,876.99x = 9,798,627.43
  5. Step 5: Solve for x
    x = 9,798,627.43/3,876.99
  6. Step 6: Final answer
    x = 2,527.38

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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.