Home / 4,072.80-5,614.32-3,511.20

Finding the Fourth Proportional to 4,072.80, 5,614.32 and 3,511.20

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Solution

The fourth proportional to 4,072.80, 5,614.32 and 3,511.20 is: 4,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.80 : 5,614.32 = 3,511.20 : x
  2. Step 2: Convert to fraction form
    4,072.80/5,614.32 = 3,511.20/x
  3. Step 3: Cross multiply
    4,072.80x = 5,614.32 × 3,511.20
  4. Step 4: Simplify right side
    4,072.80x = 19,713,000.38
  5. Step 5: Solve for x
    x = 19,713,000.38/4,072.80
  6. Step 6: Final answer
    x = 4,840.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.