Home / 4,128.30-5,696.06-2,803.28

Finding the Fourth Proportional to 4,128.30, 5,696.06 and 2,803.28

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Solution

The fourth proportional to 4,128.30, 5,696.06 and 2,803.28 is: 3,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.30 : 5,696.06 = 2,803.28 : x
  2. Step 2: Convert to fraction form
    4,128.30/5,696.06 = 2,803.28/x
  3. Step 3: Cross multiply
    4,128.30x = 5,696.06 × 2,803.28
  4. Step 4: Simplify right side
    4,128.30x = 15,967,608.58
  5. Step 5: Solve for x
    x = 15,967,608.58/4,128.30
  6. Step 6: Final answer
    x = 3,867.84

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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.