Home / 4,722.32-7,086.48-2,125.28

Finding the Fourth Proportional to 4,722.32, 7,086.48 and 2,125.28

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Solution

The fourth proportional to 4,722.32, 7,086.48 and 2,125.28 is: 3,189.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.32 : 7,086.48 = 2,125.28 : x
  2. Step 2: Convert to fraction form
    4,722.32/7,086.48 = 2,125.28/x
  3. Step 3: Cross multiply
    4,722.32x = 7,086.48 × 2,125.28
  4. Step 4: Simplify right side
    4,722.32x = 15,060,754.21
  5. Step 5: Solve for x
    x = 15,060,754.21/4,722.32
  6. Step 6: Final answer
    x = 3,189.27

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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.