Home / 6,203.60-8,557.58-3,930.78

Finding the Fourth Proportional to 6,203.60, 8,557.58 and 3,930.78

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Solution

The fourth proportional to 6,203.60, 8,557.58 and 3,930.78 is: 5,422.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,203.60 : 8,557.58 = 3,930.78 : x
  2. Step 2: Convert to fraction form
    6,203.60/8,557.58 = 3,930.78/x
  3. Step 3: Cross multiply
    6,203.60x = 8,557.58 × 3,930.78
  4. Step 4: Simplify right side
    6,203.60x = 33,637,964.31
  5. Step 5: Solve for x
    x = 33,637,964.31/6,203.60
  6. Step 6: Final answer
    x = 5,422.33

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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.