Home / 7,210.85-10,808.84-5,231.54

Finding the Fourth Proportional to 7,210.85, 10,808.84 and 5,231.54

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Solution

The fourth proportional to 7,210.85, 10,808.84 and 5,231.54 is: 7,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.85 : 10,808.84 = 5,231.54 : x
  2. Step 2: Convert to fraction form
    7,210.85/10,808.84 = 5,231.54/x
  3. Step 3: Cross multiply
    7,210.85x = 10,808.84 × 5,231.54
  4. Step 4: Simplify right side
    7,210.85x = 56,546,918.91
  5. Step 5: Solve for x
    x = 56,546,918.91/7,210.85
  6. Step 6: Final answer
    x = 7,841.93

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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.