Home / 3,457.15-5,186.63-1,813.25

Finding the Fourth Proportional to 3,457.15, 5,186.63 and 1,813.25

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Solution

The fourth proportional to 3,457.15, 5,186.63 and 1,813.25 is: 2,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.15 : 5,186.63 = 1,813.25 : x
  2. Step 2: Convert to fraction form
    3,457.15/5,186.63 = 1,813.25/x
  3. Step 3: Cross multiply
    3,457.15x = 5,186.63 × 1,813.25
  4. Step 4: Simplify right side
    3,457.15x = 9,404,674.35
  5. Step 5: Solve for x
    x = 9,404,674.35/3,457.15
  6. Step 6: Final answer
    x = 2,720.36

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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.