Home / 3,718.22-5,131.28-2,124.84

Finding the Fourth Proportional to 3,718.22, 5,131.28 and 2,124.84

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Solution

The fourth proportional to 3,718.22, 5,131.28 and 2,124.84 is: 2,932.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.22 : 5,131.28 = 2,124.84 : x
  2. Step 2: Convert to fraction form
    3,718.22/5,131.28 = 2,124.84/x
  3. Step 3: Cross multiply
    3,718.22x = 5,131.28 × 2,124.84
  4. Step 4: Simplify right side
    3,718.22x = 10,903,149.00
  5. Step 5: Solve for x
    x = 10,903,149.00/3,718.22
  6. Step 6: Final answer
    x = 2,932.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.