Home / 5,638.38-7,782.87-3,282.48

Finding the Fourth Proportional to 5,638.38, 7,782.87 and 3,282.48

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Solution

The fourth proportional to 5,638.38, 7,782.87 and 3,282.48 is: 4,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.38 : 7,782.87 = 3,282.48 : x
  2. Step 2: Convert to fraction form
    5,638.38/7,782.87 = 3,282.48/x
  3. Step 3: Cross multiply
    5,638.38x = 7,782.87 × 3,282.48
  4. Step 4: Simplify right side
    5,638.38x = 25,547,115.12
  5. Step 5: Solve for x
    x = 25,547,115.12/5,638.38
  6. Step 6: Final answer
    x = 4,530.93

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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.