Home / 5,310.20-7,328.06-3,213.72

Finding the Fourth Proportional to 5,310.20, 7,328.06 and 3,213.72

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Solution

The fourth proportional to 5,310.20, 7,328.06 and 3,213.72 is: 4,434.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.20 : 7,328.06 = 3,213.72 : x
  2. Step 2: Convert to fraction form
    5,310.20/7,328.06 = 3,213.72/x
  3. Step 3: Cross multiply
    5,310.20x = 7,328.06 × 3,213.72
  4. Step 4: Simplify right side
    5,310.20x = 23,550,332.98
  5. Step 5: Solve for x
    x = 23,550,332.98/5,310.20
  6. Step 6: Final answer
    x = 4,434.92

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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.