Home / 3,930.56-5,425.48-2,604.40

Finding the Fourth Proportional to 3,930.56, 5,425.48 and 2,604.40

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Solution

The fourth proportional to 3,930.56, 5,425.48 and 2,604.40 is: 3,594.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.56 : 5,425.48 = 2,604.40 : x
  2. Step 2: Convert to fraction form
    3,930.56/5,425.48 = 2,604.40/x
  3. Step 3: Cross multiply
    3,930.56x = 5,425.48 × 2,604.40
  4. Step 4: Simplify right side
    3,930.56x = 14,130,120.11
  5. Step 5: Solve for x
    x = 14,130,120.11/3,930.56
  6. Step 6: Final answer
    x = 3,594.94

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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.