Home / 5,529.36-7,630.62-3,139.48

Finding the Fourth Proportional to 5,529.36, 7,630.62 and 3,139.48

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Solution

The fourth proportional to 5,529.36, 7,630.62 and 3,139.48 is: 4,332.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.36 : 7,630.62 = 3,139.48 : x
  2. Step 2: Convert to fraction form
    5,529.36/7,630.62 = 3,139.48/x
  3. Step 3: Cross multiply
    5,529.36x = 7,630.62 × 3,139.48
  4. Step 4: Simplify right side
    5,529.36x = 23,956,178.88
  5. Step 5: Solve for x
    x = 23,956,178.88/5,529.36
  6. Step 6: Final answer
    x = 4,332.54

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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.