Home / 4,879.20-7,322.40-3,235.20

Finding the Fourth Proportional to 4,879.20, 7,322.40 and 3,235.20

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Solution

The fourth proportional to 4,879.20, 7,322.40 and 3,235.20 is: 4,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.20 : 7,322.40 = 3,235.20 : x
  2. Step 2: Convert to fraction form
    4,879.20/7,322.40 = 3,235.20/x
  3. Step 3: Cross multiply
    4,879.20x = 7,322.40 × 3,235.20
  4. Step 4: Simplify right side
    4,879.20x = 23,689,428.48
  5. Step 5: Solve for x
    x = 23,689,428.48/4,879.20
  6. Step 6: Final answer
    x = 4,855.19

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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.