Home / 3,740.38-5,158.70-3,291.28

Finding the Fourth Proportional to 3,740.38, 5,158.70 and 3,291.28

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Solution

The fourth proportional to 3,740.38, 5,158.70 and 3,291.28 is: 4,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.38 : 5,158.70 = 3,291.28 : x
  2. Step 2: Convert to fraction form
    3,740.38/5,158.70 = 3,291.28/x
  3. Step 3: Cross multiply
    3,740.38x = 5,158.70 × 3,291.28
  4. Step 4: Simplify right side
    3,740.38x = 16,978,709.68
  5. Step 5: Solve for x
    x = 16,978,709.68/3,740.38
  6. Step 6: Final answer
    x = 4,539.30

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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.