Home / 5,604.50-8,406.76-2,142.56

Finding the Fourth Proportional to 5,604.50, 8,406.76 and 2,142.56

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Solution

The fourth proportional to 5,604.50, 8,406.76 and 2,142.56 is: 3,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,604.50 : 8,406.76 = 2,142.56 : x
  2. Step 2: Convert to fraction form
    5,604.50/8,406.76 = 2,142.56/x
  3. Step 3: Cross multiply
    5,604.50x = 8,406.76 × 2,142.56
  4. Step 4: Simplify right side
    5,604.50x = 18,011,987.71
  5. Step 5: Solve for x
    x = 18,011,987.71/5,604.50
  6. Step 6: Final answer
    x = 3,213.84

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1.5x scale

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.