Home / 2,979.30-4,102.09-2,530.24

Finding the Fourth Proportional to 2,979.30, 4,102.09 and 2,530.24

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Solution

The fourth proportional to 2,979.30, 4,102.09 and 2,530.24 is: 3,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.30 : 4,102.09 = 2,530.24 : x
  2. Step 2: Convert to fraction form
    2,979.30/4,102.09 = 2,530.24/x
  3. Step 3: Cross multiply
    2,979.30x = 4,102.09 × 2,530.24
  4. Step 4: Simplify right side
    2,979.30x = 10,379,255.62
  5. Step 5: Solve for x
    x = 10,379,255.62/2,979.30
  6. Step 6: Final answer
    x = 3,483.79

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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.