Home / 3,230.72-4,420.02-3,216.90

Finding the Fourth Proportional to 3,230.72, 4,420.02 and 3,216.90

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Solution

The fourth proportional to 3,230.72, 4,420.02 and 3,216.90 is: 4,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.72 : 4,420.02 = 3,216.90 : x
  2. Step 2: Convert to fraction form
    3,230.72/4,420.02 = 3,216.90/x
  3. Step 3: Cross multiply
    3,230.72x = 4,420.02 × 3,216.90
  4. Step 4: Simplify right side
    3,230.72x = 14,218,762.34
  5. Step 5: Solve for x
    x = 14,218,762.34/3,230.72
  6. Step 6: Final answer
    x = 4,401.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.