Home / 3,157.30-4,745.40-2,612.98

Finding the Fourth Proportional to 3,157.30, 4,745.40 and 2,612.98

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Solution

The fourth proportional to 3,157.30, 4,745.40 and 2,612.98 is: 3,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.30 : 4,745.40 = 2,612.98 : x
  2. Step 2: Convert to fraction form
    3,157.30/4,745.40 = 2,612.98/x
  3. Step 3: Cross multiply
    3,157.30x = 4,745.40 × 2,612.98
  4. Step 4: Simplify right side
    3,157.30x = 12,399,635.29
  5. Step 5: Solve for x
    x = 12,399,635.29/3,157.30
  6. Step 6: Final answer
    x = 3,927.29

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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.