Home / 3,418.04-5,130.30-2,122.04

Finding the Fourth Proportional to 3,418.04, 5,130.30 and 2,122.04

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Solution

The fourth proportional to 3,418.04, 5,130.30 and 2,122.04 is: 3,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.04 : 5,130.30 = 2,122.04 : x
  2. Step 2: Convert to fraction form
    3,418.04/5,130.30 = 2,122.04/x
  3. Step 3: Cross multiply
    3,418.04x = 5,130.30 × 2,122.04
  4. Step 4: Simplify right side
    3,418.04x = 10,886,701.81
  5. Step 5: Solve for x
    x = 10,886,701.81/3,418.04
  6. Step 6: Final answer
    x = 3,185.07

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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.