Home / 3,432.85-5,149.23-835.79

Finding the Fourth Proportional to 3,432.85, 5,149.23 and 835.79

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Solution

The fourth proportional to 3,432.85, 5,149.23 and 835.79 is: 1,253.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.85 : 5,149.23 = 835.79 : x
  2. Step 2: Convert to fraction form
    3,432.85/5,149.23 = 835.79/x
  3. Step 3: Cross multiply
    3,432.85x = 5,149.23 × 835.79
  4. Step 4: Simplify right side
    3,432.85x = 4,303,674.94
  5. Step 5: Solve for x
    x = 4,303,674.94/3,432.85
  6. Step 6: Final answer
    x = 1,253.67

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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.