Home / 5,267.20-7,268.48-2,909.28

Finding the Fourth Proportional to 5,267.20, 7,268.48 and 2,909.28

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Solution

The fourth proportional to 5,267.20, 7,268.48 and 2,909.28 is: 4,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.20 : 7,268.48 = 2,909.28 : x
  2. Step 2: Convert to fraction form
    5,267.20/7,268.48 = 2,909.28/x
  3. Step 3: Cross multiply
    5,267.20x = 7,268.48 × 2,909.28
  4. Step 4: Simplify right side
    5,267.20x = 21,146,043.49
  5. Step 5: Solve for x
    x = 21,146,043.49/5,267.20
  6. Step 6: Final answer
    x = 4,014.67

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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.