Home / 3,128.16-4,685.82-1,563.48

Finding the Fourth Proportional to 3,128.16, 4,685.82 and 1,563.48

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Solution

The fourth proportional to 3,128.16, 4,685.82 and 1,563.48 is: 2,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.16 : 4,685.82 = 1,563.48 : x
  2. Step 2: Convert to fraction form
    3,128.16/4,685.82 = 1,563.48/x
  3. Step 3: Cross multiply
    3,128.16x = 4,685.82 × 1,563.48
  4. Step 4: Simplify right side
    3,128.16x = 7,326,185.85
  5. Step 5: Solve for x
    x = 7,326,185.85/3,128.16
  6. Step 6: Final answer
    x = 2,342.01

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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.