Home / 3,739.32-5,159.43-2,145.87

Finding the Fourth Proportional to 3,739.32, 5,159.43 and 2,145.87

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Solution

The fourth proportional to 3,739.32, 5,159.43 and 2,145.87 is: 2,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.32 : 5,159.43 = 2,145.87 : x
  2. Step 2: Convert to fraction form
    3,739.32/5,159.43 = 2,145.87/x
  3. Step 3: Cross multiply
    3,739.32x = 5,159.43 × 2,145.87
  4. Step 4: Simplify right side
    3,739.32x = 11,071,466.05
  5. Step 5: Solve for x
    x = 11,071,466.05/3,739.32
  6. Step 6: Final answer
    x = 2,960.82

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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.