Home / 3,739.21-5,158.15-2,853.47

Finding the Fourth Proportional to 3,739.21, 5,158.15 and 2,853.47

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Solution

The fourth proportional to 3,739.21, 5,158.15 and 2,853.47 is: 3,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.21 : 5,158.15 = 2,853.47 : x
  2. Step 2: Convert to fraction form
    3,739.21/5,158.15 = 2,853.47/x
  3. Step 3: Cross multiply
    3,739.21x = 5,158.15 × 2,853.47
  4. Step 4: Simplify right side
    3,739.21x = 14,718,632.04
  5. Step 5: Solve for x
    x = 14,718,632.04/3,739.21
  6. Step 6: Final answer
    x = 3,936.30

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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.