Home / 5,638.38-7,782.88-3,282.50

Finding the Fourth Proportional to 5,638.38, 7,782.88 and 3,282.50

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Solution

The fourth proportional to 5,638.38, 7,782.88 and 3,282.50 is: 4,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.38 : 7,782.88 = 3,282.50 : x
  2. Step 2: Convert to fraction form
    5,638.38/7,782.88 = 3,282.50/x
  3. Step 3: Cross multiply
    5,638.38x = 7,782.88 × 3,282.50
  4. Step 4: Simplify right side
    5,638.38x = 25,547,303.60
  5. Step 5: Solve for x
    x = 25,547,303.60/5,638.38
  6. Step 6: Final answer
    x = 4,530.97

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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.