Home / 3,457.30-5,178.39-3,381.21

Finding the Fourth Proportional to 3,457.30, 5,178.39 and 3,381.21

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Solution

The fourth proportional to 3,457.30, 5,178.39 and 3,381.21 is: 5,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.30 : 5,178.39 = 3,381.21 : x
  2. Step 2: Convert to fraction form
    3,457.30/5,178.39 = 3,381.21/x
  3. Step 3: Cross multiply
    3,457.30x = 5,178.39 × 3,381.21
  4. Step 4: Simplify right side
    3,457.30x = 17,509,224.05
  5. Step 5: Solve for x
    x = 17,509,224.05/3,457.30
  6. Step 6: Final answer
    x = 5,064.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.