Home / 4,266.06-6,390.56-3,390.04

Finding the Fourth Proportional to 4,266.06, 6,390.56 and 3,390.04

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Solution

The fourth proportional to 4,266.06, 6,390.56 and 3,390.04 is: 5,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,266.06 : 6,390.56 = 3,390.04 : x
  2. Step 2: Convert to fraction form
    4,266.06/6,390.56 = 3,390.04/x
  3. Step 3: Cross multiply
    4,266.06x = 6,390.56 × 3,390.04
  4. Step 4: Simplify right side
    4,266.06x = 21,664,237.07
  5. Step 5: Solve for x
    x = 21,664,237.07/4,266.06
  6. Step 6: Final answer
    x = 5,078.28

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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.