Home / 4,739.65-7,105.35-1,815.90

Finding the Fourth Proportional to 4,739.65, 7,105.35 and 1,815.90

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Solution

The fourth proportional to 4,739.65, 7,105.35 and 1,815.90 is: 2,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.65 : 7,105.35 = 1,815.90 : x
  2. Step 2: Convert to fraction form
    4,739.65/7,105.35 = 1,815.90/x
  3. Step 3: Cross multiply
    4,739.65x = 7,105.35 × 1,815.90
  4. Step 4: Simplify right side
    4,739.65x = 12,902,625.20
  5. Step 5: Solve for x
    x = 12,902,625.20/4,739.65
  6. Step 6: Final answer
    x = 2,722.28

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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.