Home / 3,423.40-5,136.30-1,669.08

Finding the Fourth Proportional to 3,423.40, 5,136.30 and 1,669.08

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Solution

The fourth proportional to 3,423.40, 5,136.30 and 1,669.08 is: 2,504.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.40 : 5,136.30 = 1,669.08 : x
  2. Step 2: Convert to fraction form
    3,423.40/5,136.30 = 1,669.08/x
  3. Step 3: Cross multiply
    3,423.40x = 5,136.30 × 1,669.08
  4. Step 4: Simplify right side
    3,423.40x = 8,572,895.60
  5. Step 5: Solve for x
    x = 8,572,895.60/3,423.40
  6. Step 6: Final answer
    x = 2,504.21

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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.