Home / 3,049.05-4,208.40-2,165.13

Finding the Fourth Proportional to 3,049.05, 4,208.40 and 2,165.13

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Solution

The fourth proportional to 3,049.05, 4,208.40 and 2,165.13 is: 2,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.05 : 4,208.40 = 2,165.13 : x
  2. Step 2: Convert to fraction form
    3,049.05/4,208.40 = 2,165.13/x
  3. Step 3: Cross multiply
    3,049.05x = 4,208.40 × 2,165.13
  4. Step 4: Simplify right side
    3,049.05x = 9,111,733.09
  5. Step 5: Solve for x
    x = 9,111,733.09/3,049.05
  6. Step 6: Final answer
    x = 2,988.38

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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.