Home / 2,939.13-4,402.62-2,355.12

Finding the Fourth Proportional to 2,939.13, 4,402.62 and 2,355.12

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Solution

The fourth proportional to 2,939.13, 4,402.62 and 2,355.12 is: 3,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.13 : 4,402.62 = 2,355.12 : x
  2. Step 2: Convert to fraction form
    2,939.13/4,402.62 = 2,355.12/x
  3. Step 3: Cross multiply
    2,939.13x = 4,402.62 × 2,355.12
  4. Step 4: Simplify right side
    2,939.13x = 10,368,698.41
  5. Step 5: Solve for x
    x = 10,368,698.41/2,939.13
  6. Step 6: Final answer
    x = 3,527.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.