Home / 7,399.48-10,211.20-4,042.28

Finding the Fourth Proportional to 7,399.48, 10,211.20 and 4,042.28

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Solution

The fourth proportional to 7,399.48, 10,211.20 and 4,042.28 is: 5,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.48 : 10,211.20 = 4,042.28 : x
  2. Step 2: Convert to fraction form
    7,399.48/10,211.20 = 4,042.28/x
  3. Step 3: Cross multiply
    7,399.48x = 10,211.20 × 4,042.28
  4. Step 4: Simplify right side
    7,399.48x = 41,276,529.54
  5. Step 5: Solve for x
    x = 41,276,529.54/7,399.48
  6. Step 6: Final answer
    x = 5,578.30

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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.