Home / 3,457.56-5,186.97-1,376.91

Finding the Fourth Proportional to 3,457.56, 5,186.97 and 1,376.91

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Solution

The fourth proportional to 3,457.56, 5,186.97 and 1,376.91 is: 2,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.56 : 5,186.97 = 1,376.91 : x
  2. Step 2: Convert to fraction form
    3,457.56/5,186.97 = 1,376.91/x
  3. Step 3: Cross multiply
    3,457.56x = 5,186.97 × 1,376.91
  4. Step 4: Simplify right side
    3,457.56x = 7,141,990.86
  5. Step 5: Solve for x
    x = 7,141,990.86/3,457.56
  6. Step 6: Final answer
    x = 2,065.62

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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.