Home / 3,740.81-5,158.31-2,481.46

Finding the Fourth Proportional to 3,740.81, 5,158.31 and 2,481.46

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Solution

The fourth proportional to 3,740.81, 5,158.31 and 2,481.46 is: 3,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.81 : 5,158.31 = 2,481.46 : x
  2. Step 2: Convert to fraction form
    3,740.81/5,158.31 = 2,481.46/x
  3. Step 3: Cross multiply
    3,740.81x = 5,158.31 × 2,481.46
  4. Step 4: Simplify right side
    3,740.81x = 12,800,114.63
  5. Step 5: Solve for x
    x = 12,800,114.63/3,740.81
  6. Step 6: Final answer
    x = 3,421.75

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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.