Home / 2,939.08-4,055.63-1,760.12

Finding the Fourth Proportional to 2,939.08, 4,055.63 and 1,760.12

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Solution

The fourth proportional to 2,939.08, 4,055.63 and 1,760.12 is: 2,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.08 : 4,055.63 = 1,760.12 : x
  2. Step 2: Convert to fraction form
    2,939.08/4,055.63 = 1,760.12/x
  3. Step 3: Cross multiply
    2,939.08x = 4,055.63 × 1,760.12
  4. Step 4: Simplify right side
    2,939.08x = 7,138,395.48
  5. Step 5: Solve for x
    x = 7,138,395.48/2,939.08
  6. Step 6: Final answer
    x = 2,428.79

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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.