Home / 3,930.01-5,421.56-2,437.38

Finding the Fourth Proportional to 3,930.01, 5,421.56 and 2,437.38

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Solution

The fourth proportional to 3,930.01, 5,421.56 and 2,437.38 is: 3,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.01 : 5,421.56 = 2,437.38 : x
  2. Step 2: Convert to fraction form
    3,930.01/5,421.56 = 2,437.38/x
  3. Step 3: Cross multiply
    3,930.01x = 5,421.56 × 2,437.38
  4. Step 4: Simplify right side
    3,930.01x = 13,214,389.73
  5. Step 5: Solve for x
    x = 13,214,389.73/3,930.01
  6. Step 6: Final answer
    x = 3,362.43

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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.