Home / 4,129.20-5,696.16-2,729.52

Finding the Fourth Proportional to 4,129.20, 5,696.16 and 2,729.52

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Solution

The fourth proportional to 4,129.20, 5,696.16 and 2,729.52 is: 3,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.20 : 5,696.16 = 2,729.52 : x
  2. Step 2: Convert to fraction form
    4,129.20/5,696.16 = 2,729.52/x
  3. Step 3: Cross multiply
    4,129.20x = 5,696.16 × 2,729.52
  4. Step 4: Simplify right side
    4,129.20x = 15,547,782.64
  5. Step 5: Solve for x
    x = 15,547,782.64/4,129.20
  6. Step 6: Final answer
    x = 3,765.33

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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.