Home / 3,457.15-5,185.71-2,070.90

Finding the Fourth Proportional to 3,457.15, 5,185.71 and 2,070.90

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Solution

The fourth proportional to 3,457.15, 5,185.71 and 2,070.90 is: 3,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.15 : 5,185.71 = 2,070.90 : x
  2. Step 2: Convert to fraction form
    3,457.15/5,185.71 = 2,070.90/x
  3. Step 3: Cross multiply
    3,457.15x = 5,185.71 × 2,070.90
  4. Step 4: Simplify right side
    3,457.15x = 10,739,086.84
  5. Step 5: Solve for x
    x = 10,739,086.84/3,457.15
  6. Step 6: Final answer
    x = 3,106.34

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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.