Home / 3,399.91-4,689.72-2,457.09

Finding the Fourth Proportional to 3,399.91, 4,689.72 and 2,457.09

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Solution

The fourth proportional to 3,399.91, 4,689.72 and 2,457.09 is: 3,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.91 : 4,689.72 = 2,457.09 : x
  2. Step 2: Convert to fraction form
    3,399.91/4,689.72 = 2,457.09/x
  3. Step 3: Cross multiply
    3,399.91x = 4,689.72 × 2,457.09
  4. Step 4: Simplify right side
    3,399.91x = 11,523,064.11
  5. Step 5: Solve for x
    x = 11,523,064.11/3,399.91
  6. Step 6: Final answer
    x = 3,389.23

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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.