Home / 5,709.44-7,880.03-3,320.15

Finding the Fourth Proportional to 5,709.44, 7,880.03 and 3,320.15

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Solution

The fourth proportional to 5,709.44, 7,880.03 and 3,320.15 is: 4,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.44 : 7,880.03 = 3,320.15 : x
  2. Step 2: Convert to fraction form
    5,709.44/7,880.03 = 3,320.15/x
  3. Step 3: Cross multiply
    5,709.44x = 7,880.03 × 3,320.15
  4. Step 4: Simplify right side
    5,709.44x = 26,162,905.45
  5. Step 5: Solve for x
    x = 26,162,905.45/5,709.44
  6. Step 6: Final answer
    x = 4,582.39

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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.