Home / 4,930.64-7,400.87-2,159.22

Finding the Fourth Proportional to 4,930.64, 7,400.87 and 2,159.22

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Solution

The fourth proportional to 4,930.64, 7,400.87 and 2,159.22 is: 3,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.64 : 7,400.87 = 2,159.22 : x
  2. Step 2: Convert to fraction form
    4,930.64/7,400.87 = 2,159.22/x
  3. Step 3: Cross multiply
    4,930.64x = 7,400.87 × 2,159.22
  4. Step 4: Simplify right side
    4,930.64x = 15,980,131.58
  5. Step 5: Solve for x
    x = 15,980,131.58/4,930.64
  6. Step 6: Final answer
    x = 3,240.99

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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.