Home / 3,929.56-5,422.68-2,533.12

Finding the Fourth Proportional to 3,929.56, 5,422.68 and 2,533.12

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Solution

The fourth proportional to 3,929.56, 5,422.68 and 2,533.12 is: 3,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.56 : 5,422.68 = 2,533.12 : x
  2. Step 2: Convert to fraction form
    3,929.56/5,422.68 = 2,533.12/x
  3. Step 3: Cross multiply
    3,929.56x = 5,422.68 × 2,533.12
  4. Step 4: Simplify right side
    3,929.56x = 13,736,299.16
  5. Step 5: Solve for x
    x = 13,736,299.16/3,929.56
  6. Step 6: Final answer
    x = 3,495.63

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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.