Home / 3,120.30-4,293.09-2,369.88

Finding the Fourth Proportional to 3,120.30, 4,293.09 and 2,369.88

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Solution

The fourth proportional to 3,120.30, 4,293.09 and 2,369.88 is: 3,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.30 : 4,293.09 = 2,369.88 : x
  2. Step 2: Convert to fraction form
    3,120.30/4,293.09 = 2,369.88/x
  3. Step 3: Cross multiply
    3,120.30x = 4,293.09 × 2,369.88
  4. Step 4: Simplify right side
    3,120.30x = 10,174,108.13
  5. Step 5: Solve for x
    x = 10,174,108.13/3,120.30
  6. Step 6: Final answer
    x = 3,260.62

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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.