Home / 5,628.72-7,763.28-4,299.12

Finding the Fourth Proportional to 5,628.72, 7,763.28 and 4,299.12

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Solution

The fourth proportional to 5,628.72, 7,763.28 and 4,299.12 is: 5,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.72 : 7,763.28 = 4,299.12 : x
  2. Step 2: Convert to fraction form
    5,628.72/7,763.28 = 4,299.12/x
  3. Step 3: Cross multiply
    5,628.72x = 7,763.28 × 4,299.12
  4. Step 4: Simplify right side
    5,628.72x = 33,375,272.31
  5. Step 5: Solve for x
    x = 33,375,272.31/5,628.72
  6. Step 6: Final answer
    x = 5,929.46

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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.