Home / 5,159.36-7,740.58-2,039.80

Finding the Fourth Proportional to 5,159.36, 7,740.58 and 2,039.80

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Solution

The fourth proportional to 5,159.36, 7,740.58 and 2,039.80 is: 3,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.36 : 7,740.58 = 2,039.80 : x
  2. Step 2: Convert to fraction form
    5,159.36/7,740.58 = 2,039.80/x
  3. Step 3: Cross multiply
    5,159.36x = 7,740.58 × 2,039.80
  4. Step 4: Simplify right side
    5,159.36x = 15,789,235.08
  5. Step 5: Solve for x
    x = 15,789,235.08/5,159.36
  6. Step 6: Final answer
    x = 3,060.31

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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.