Home / 4,764.10-7,143.15-1,992.70

Finding the Fourth Proportional to 4,764.10, 7,143.15 and 1,992.70

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Solution

The fourth proportional to 4,764.10, 7,143.15 and 1,992.70 is: 2,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,764.10 : 7,143.15 = 1,992.70 : x
  2. Step 2: Convert to fraction form
    4,764.10/7,143.15 = 1,992.70/x
  3. Step 3: Cross multiply
    4,764.10x = 7,143.15 × 1,992.70
  4. Step 4: Simplify right side
    4,764.10x = 14,234,155.01
  5. Step 5: Solve for x
    x = 14,234,155.01/4,764.10
  6. Step 6: Final answer
    x = 2,987.80

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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.