Home / 2,379.41-3,284.49-2,130.29

Finding the Fourth Proportional to 2,379.41, 3,284.49 and 2,130.29

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Solution

The fourth proportional to 2,379.41, 3,284.49 and 2,130.29 is: 2,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.41 : 3,284.49 = 2,130.29 : x
  2. Step 2: Convert to fraction form
    2,379.41/3,284.49 = 2,130.29/x
  3. Step 3: Cross multiply
    2,379.41x = 3,284.49 × 2,130.29
  4. Step 4: Simplify right side
    2,379.41x = 6,996,916.20
  5. Step 5: Solve for x
    x = 6,996,916.20/2,379.41
  6. Step 6: Final answer
    x = 2,940.61

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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.