Home / 3,731.88-5,148.96-2,405.10

Finding the Fourth Proportional to 3,731.88, 5,148.96 and 2,405.10

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Solution

The fourth proportional to 3,731.88, 5,148.96 and 2,405.10 is: 3,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.88 : 5,148.96 = 2,405.10 : x
  2. Step 2: Convert to fraction form
    3,731.88/5,148.96 = 2,405.10/x
  3. Step 3: Cross multiply
    3,731.88x = 5,148.96 × 2,405.10
  4. Step 4: Simplify right side
    3,731.88x = 12,383,763.70
  5. Step 5: Solve for x
    x = 12,383,763.70/3,731.88
  6. Step 6: Final answer
    x = 3,318.37

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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.