Home / 3,457.40-5,186.44-1,376.92

Finding the Fourth Proportional to 3,457.40, 5,186.44 and 1,376.92

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Solution

The fourth proportional to 3,457.40, 5,186.44 and 1,376.92 is: 2,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.40 : 5,186.44 = 1,376.92 : x
  2. Step 2: Convert to fraction form
    3,457.40/5,186.44 = 1,376.92/x
  3. Step 3: Cross multiply
    3,457.40x = 5,186.44 × 1,376.92
  4. Step 4: Simplify right side
    3,457.40x = 7,141,312.96
  5. Step 5: Solve for x
    x = 7,141,312.96/3,457.40
  6. Step 6: Final answer
    x = 2,065.52

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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.