Home / 5,427.04-8,145.20-2,142.48

Finding the Fourth Proportional to 5,427.04, 8,145.20 and 2,142.48

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Solution

The fourth proportional to 5,427.04, 8,145.20 and 2,142.48 is: 3,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.04 : 8,145.20 = 2,142.48 : x
  2. Step 2: Convert to fraction form
    5,427.04/8,145.20 = 2,142.48/x
  3. Step 3: Cross multiply
    5,427.04x = 8,145.20 × 2,142.48
  4. Step 4: Simplify right side
    5,427.04x = 17,450,928.10
  5. Step 5: Solve for x
    x = 17,450,928.10/5,427.04
  6. Step 6: Final answer
    x = 3,215.55

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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.