Home / 7,207.60-10,811.26-2,828.12

Finding the Fourth Proportional to 7,207.60, 10,811.26 and 2,828.12

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Solution

The fourth proportional to 7,207.60, 10,811.26 and 2,828.12 is: 4,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.60 : 10,811.26 = 2,828.12 : x
  2. Step 2: Convert to fraction form
    7,207.60/10,811.26 = 2,828.12/x
  3. Step 3: Cross multiply
    7,207.60x = 10,811.26 × 2,828.12
  4. Step 4: Simplify right side
    7,207.60x = 30,575,540.63
  5. Step 5: Solve for x
    x = 30,575,540.63/7,207.60
  6. Step 6: Final answer
    x = 4,242.13

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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.