Home / 5,234.09-7,216.90-3,905.48

Finding the Fourth Proportional to 5,234.09, 7,216.90 and 3,905.48

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Solution

The fourth proportional to 5,234.09, 7,216.90 and 3,905.48 is: 5,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.09 : 7,216.90 = 3,905.48 : x
  2. Step 2: Convert to fraction form
    5,234.09/7,216.90 = 3,905.48/x
  3. Step 3: Cross multiply
    5,234.09x = 7,216.90 × 3,905.48
  4. Step 4: Simplify right side
    5,234.09x = 28,185,466.89
  5. Step 5: Solve for x
    x = 28,185,466.89/5,234.09
  6. Step 6: Final answer
    x = 5,384.98

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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.