Home / 3,409.24-5,114.70-1,217.80

Finding the Fourth Proportional to 3,409.24, 5,114.70 and 1,217.80

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Solution

The fourth proportional to 3,409.24, 5,114.70 and 1,217.80 is: 1,827.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.24 : 5,114.70 = 1,217.80 : x
  2. Step 2: Convert to fraction form
    3,409.24/5,114.70 = 1,217.80/x
  3. Step 3: Cross multiply
    3,409.24x = 5,114.70 × 1,217.80
  4. Step 4: Simplify right side
    3,409.24x = 6,228,681.66
  5. Step 5: Solve for x
    x = 6,228,681.66/3,409.24
  6. Step 6: Final answer
    x = 1,827.00

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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.