Home / 5,628.80-8,436.16-3,883.52

Finding the Fourth Proportional to 5,628.80, 8,436.16 and 3,883.52

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Solution

The fourth proportional to 5,628.80, 8,436.16 and 3,883.52 is: 5,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.80 : 8,436.16 = 3,883.52 : x
  2. Step 2: Convert to fraction form
    5,628.80/8,436.16 = 3,883.52/x
  3. Step 3: Cross multiply
    5,628.80x = 8,436.16 × 3,883.52
  4. Step 4: Simplify right side
    5,628.80x = 32,761,996.08
  5. Step 5: Solve for x
    x = 32,761,996.08/5,628.80
  6. Step 6: Final answer
    x = 5,820.42

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1.5x scale

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.