Home / 5,388.23-7,439.38-4,819.28

Finding the Fourth Proportional to 5,388.23, 7,439.38 and 4,819.28

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Solution

The fourth proportional to 5,388.23, 7,439.38 and 4,819.28 is: 6,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.23 : 7,439.38 = 4,819.28 : x
  2. Step 2: Convert to fraction form
    5,388.23/7,439.38 = 4,819.28/x
  3. Step 3: Cross multiply
    5,388.23x = 7,439.38 × 4,819.28
  4. Step 4: Simplify right side
    5,388.23x = 35,852,406.00
  5. Step 5: Solve for x
    x = 35,852,406.00/5,388.23
  6. Step 6: Final answer
    x = 6,653.83

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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.