Home / 3,930.10-5,888.31-3,279.94

Finding the Fourth Proportional to 3,930.10, 5,888.31 and 3,279.94

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Solution

The fourth proportional to 3,930.10, 5,888.31 and 3,279.94 is: 4,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.10 : 5,888.31 = 3,279.94 : x
  2. Step 2: Convert to fraction form
    3,930.10/5,888.31 = 3,279.94/x
  3. Step 3: Cross multiply
    3,930.10x = 5,888.31 × 3,279.94
  4. Step 4: Simplify right side
    3,930.10x = 19,313,303.50
  5. Step 5: Solve for x
    x = 19,313,303.50/3,930.10
  6. Step 6: Final answer
    x = 4,914.20

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1.5x scale

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.