Home / 7,209.60-10,814.88-2,015.28

Finding the Fourth Proportional to 7,209.60, 10,814.88 and 2,015.28

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Solution

The fourth proportional to 7,209.60, 10,814.88 and 2,015.28 is: 3,023.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.60 : 10,814.88 = 2,015.28 : x
  2. Step 2: Convert to fraction form
    7,209.60/10,814.88 = 2,015.28/x
  3. Step 3: Cross multiply
    7,209.60x = 10,814.88 × 2,015.28
  4. Step 4: Simplify right side
    7,209.60x = 21,795,011.37
  5. Step 5: Solve for x
    x = 21,795,011.37/7,209.60
  6. Step 6: Final answer
    x = 3,023.05

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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.