Home / 7,071.08-10,605.23-2,139.56

Finding the Fourth Proportional to 7,071.08, 10,605.23 and 2,139.56

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Solution

The fourth proportional to 7,071.08, 10,605.23 and 2,139.56 is: 3,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.08 : 10,605.23 = 2,139.56 : x
  2. Step 2: Convert to fraction form
    7,071.08/10,605.23 = 2,139.56/x
  3. Step 3: Cross multiply
    7,071.08x = 10,605.23 × 2,139.56
  4. Step 4: Simplify right side
    7,071.08x = 22,690,462.17
  5. Step 5: Solve for x
    x = 22,690,462.17/7,071.08
  6. Step 6: Final answer
    x = 3,208.91

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1.5x scale

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.