Home / 4,778.93-7,168.43-1,817.40

Finding the Fourth Proportional to 4,778.93, 7,168.43 and 1,817.40

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Solution

The fourth proportional to 4,778.93, 7,168.43 and 1,817.40 is: 2,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.93 : 7,168.43 = 1,817.40 : x
  2. Step 2: Convert to fraction form
    4,778.93/7,168.43 = 1,817.40/x
  3. Step 3: Cross multiply
    4,778.93x = 7,168.43 × 1,817.40
  4. Step 4: Simplify right side
    4,778.93x = 13,027,936.11
  5. Step 5: Solve for x
    x = 13,027,936.11/4,778.93
  6. Step 6: Final answer
    x = 2,726.12

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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.