Home / 7,427.20-10,249.20-4,283.20

Finding the Fourth Proportional to 7,427.20, 10,249.20 and 4,283.20

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Solution

The fourth proportional to 7,427.20, 10,249.20 and 4,283.20 is: 5,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.20 : 10,249.20 = 4,283.20 : x
  2. Step 2: Convert to fraction form
    7,427.20/10,249.20 = 4,283.20/x
  3. Step 3: Cross multiply
    7,427.20x = 10,249.20 × 4,283.20
  4. Step 4: Simplify right side
    7,427.20x = 43,899,373.44
  5. Step 5: Solve for x
    x = 43,899,373.44/7,427.20
  6. Step 6: Final answer
    x = 5,910.62

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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.