Home / 5,234.34-7,222.80-3,109.11

Finding the Fourth Proportional to 5,234.34, 7,222.80 and 3,109.11

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Solution

The fourth proportional to 5,234.34, 7,222.80 and 3,109.11 is: 4,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.34 : 7,222.80 = 3,109.11 : x
  2. Step 2: Convert to fraction form
    5,234.34/7,222.80 = 3,109.11/x
  3. Step 3: Cross multiply
    5,234.34x = 7,222.80 × 3,109.11
  4. Step 4: Simplify right side
    5,234.34x = 22,456,479.71
  5. Step 5: Solve for x
    x = 22,456,479.71/5,234.34
  6. Step 6: Final answer
    x = 4,290.22

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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.