Home / 5,220.36-7,830.48-1,760.04

Finding the Fourth Proportional to 5,220.36, 7,830.48 and 1,760.04

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Solution

The fourth proportional to 5,220.36, 7,830.48 and 1,760.04 is: 2,640.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.36 : 7,830.48 = 1,760.04 : x
  2. Step 2: Convert to fraction form
    5,220.36/7,830.48 = 1,760.04/x
  3. Step 3: Cross multiply
    5,220.36x = 7,830.48 × 1,760.04
  4. Step 4: Simplify right side
    5,220.36x = 13,781,958.02
  5. Step 5: Solve for x
    x = 13,781,958.02/5,220.36
  6. Step 6: Final answer
    x = 2,640.04

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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.