Home / 3,057.09-4,214.48-2,172.57

Finding the Fourth Proportional to 3,057.09, 4,214.48 and 2,172.57

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Solution

The fourth proportional to 3,057.09, 4,214.48 and 2,172.57 is: 2,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.09 : 4,214.48 = 2,172.57 : x
  2. Step 2: Convert to fraction form
    3,057.09/4,214.48 = 2,172.57/x
  3. Step 3: Cross multiply
    3,057.09x = 4,214.48 × 2,172.57
  4. Step 4: Simplify right side
    3,057.09x = 9,156,241.95
  5. Step 5: Solve for x
    x = 9,156,241.95/3,057.09
  6. Step 6: Final answer
    x = 2,995.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.