Home / 3,047.05-4,205.64-2,163.13

Finding the Fourth Proportional to 3,047.05, 4,205.64 and 2,163.13

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Solution

The fourth proportional to 3,047.05, 4,205.64 and 2,163.13 is: 2,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.05 : 4,205.64 = 2,163.13 : x
  2. Step 2: Convert to fraction form
    3,047.05/4,205.64 = 2,163.13/x
  3. Step 3: Cross multiply
    3,047.05x = 4,205.64 × 2,163.13
  4. Step 4: Simplify right side
    3,047.05x = 9,097,346.05
  5. Step 5: Solve for x
    x = 9,097,346.05/3,047.05
  6. Step 6: Final answer
    x = 2,985.62

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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.