Home / 3,825.12-5,276.16-2,429.76

Finding the Fourth Proportional to 3,825.12, 5,276.16 and 2,429.76

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Solution

The fourth proportional to 3,825.12, 5,276.16 and 2,429.76 is: 3,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.12 : 5,276.16 = 2,429.76 : x
  2. Step 2: Convert to fraction form
    3,825.12/5,276.16 = 2,429.76/x
  3. Step 3: Cross multiply
    3,825.12x = 5,276.16 × 2,429.76
  4. Step 4: Simplify right side
    3,825.12x = 12,819,802.52
  5. Step 5: Solve for x
    x = 12,819,802.52/3,825.12
  6. Step 6: Final answer
    x = 3,351.48

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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.