Home / 5,731.50-7,909.59-3,213.48

Finding the Fourth Proportional to 5,731.50, 7,909.59 and 3,213.48

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Solution

The fourth proportional to 5,731.50, 7,909.59 and 3,213.48 is: 4,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.50 : 7,909.59 = 3,213.48 : x
  2. Step 2: Convert to fraction form
    5,731.50/7,909.59 = 3,213.48/x
  3. Step 3: Cross multiply
    5,731.50x = 7,909.59 × 3,213.48
  4. Step 4: Simplify right side
    5,731.50x = 25,417,309.27
  5. Step 5: Solve for x
    x = 25,417,309.27/5,731.50
  6. Step 6: Final answer
    x = 4,434.67

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1.5x scale

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.