Home / 3,886.16-5,825.40-1,806.80

Finding the Fourth Proportional to 3,886.16, 5,825.40 and 1,806.80

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Solution

The fourth proportional to 3,886.16, 5,825.40 and 1,806.80 is: 2,708.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.16 : 5,825.40 = 1,806.80 : x
  2. Step 2: Convert to fraction form
    3,886.16/5,825.40 = 1,806.80/x
  3. Step 3: Cross multiply
    3,886.16x = 5,825.40 × 1,806.80
  4. Step 4: Simplify right side
    3,886.16x = 10,525,332.72
  5. Step 5: Solve for x
    x = 10,525,332.72/3,886.16
  6. Step 6: Final answer
    x = 2,708.41

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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.