Home / 4,903.62-7,351.28-2,128.19

Finding the Fourth Proportional to 4,903.62, 7,351.28 and 2,128.19

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Solution

The fourth proportional to 4,903.62, 7,351.28 and 2,128.19 is: 3,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.62 : 7,351.28 = 2,128.19 : x
  2. Step 2: Convert to fraction form
    4,903.62/7,351.28 = 2,128.19/x
  3. Step 3: Cross multiply
    4,903.62x = 7,351.28 × 2,128.19
  4. Step 4: Simplify right side
    4,903.62x = 15,644,944.28
  5. Step 5: Solve for x
    x = 15,644,944.28/4,903.62
  6. Step 6: Final answer
    x = 3,190.49

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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.