Home / 3,420.88-5,136.18-3,264.28

Finding the Fourth Proportional to 3,420.88, 5,136.18 and 3,264.28

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Solution

The fourth proportional to 3,420.88, 5,136.18 and 3,264.28 is: 4,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.88 : 5,136.18 = 3,264.28 : x
  2. Step 2: Convert to fraction form
    3,420.88/5,136.18 = 3,264.28/x
  3. Step 3: Cross multiply
    3,420.88x = 5,136.18 × 3,264.28
  4. Step 4: Simplify right side
    3,420.88x = 16,765,929.65
  5. Step 5: Solve for x
    x = 16,765,929.65/3,420.88
  6. Step 6: Final answer
    x = 4,901.06

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1.5x scale

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.