Home / 4,930.58-6,804.87-3,138.24

Finding the Fourth Proportional to 4,930.58, 6,804.87 and 3,138.24

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Solution

The fourth proportional to 4,930.58, 6,804.87 and 3,138.24 is: 4,331.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.58 : 6,804.87 = 3,138.24 : x
  2. Step 2: Convert to fraction form
    4,930.58/6,804.87 = 3,138.24/x
  3. Step 3: Cross multiply
    4,930.58x = 6,804.87 × 3,138.24
  4. Step 4: Simplify right side
    4,930.58x = 21,355,265.51
  5. Step 5: Solve for x
    x = 21,355,265.51/4,930.58
  6. Step 6: Final answer
    x = 4,331.19

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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.