Home / 5,120.08-7,680.44-2,042

Finding the Fourth Proportional to 5,120.08, 7,680.44 and 2,042

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Solution

The fourth proportional to 5,120.08, 7,680.44 and 2,042 is: 3,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.08 : 7,680.44 = 2,042 : x
  2. Step 2: Convert to fraction form
    5,120.08/7,680.44 = 2,042/x
  3. Step 3: Cross multiply
    5,120.08x = 7,680.44 × 2,042
  4. Step 4: Simplify right side
    5,120.08x = 15,683,458.48
  5. Step 5: Solve for x
    x = 15,683,458.48/5,120.08
  6. Step 6: Final answer
    x = 3,063.13

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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.