Home / 5,400-8,086.08-3,210.24

Finding the Fourth Proportional to 5,400, 8,086.08 and 3,210.24

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Solution

The fourth proportional to 5,400, 8,086.08 and 3,210.24 is: 4,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400 : 8,086.08 = 3,210.24 : x
  2. Step 2: Convert to fraction form
    5,400/8,086.08 = 3,210.24/x
  3. Step 3: Cross multiply
    5,400x = 8,086.08 × 3,210.24
  4. Step 4: Simplify right side
    5,400x = 25,958,257.46
  5. Step 5: Solve for x
    x = 25,958,257.46/5,400
  6. Step 6: Final answer
    x = 4,807.08

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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.