Home / 3,816.36-5,718.84-3,127.86

Finding the Fourth Proportional to 3,816.36, 5,718.84 and 3,127.86

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Solution

The fourth proportional to 3,816.36, 5,718.84 and 3,127.86 is: 4,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.36 : 5,718.84 = 3,127.86 : x
  2. Step 2: Convert to fraction form
    3,816.36/5,718.84 = 3,127.86/x
  3. Step 3: Cross multiply
    3,816.36x = 5,718.84 × 3,127.86
  4. Step 4: Simplify right side
    3,816.36x = 17,887,730.88
  5. Step 5: Solve for x
    x = 17,887,730.88/3,816.36
  6. Step 6: Final answer
    x = 4,687.12

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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.