Home / 2,961.20-4,448.40-2,475.20

Finding the Fourth Proportional to 2,961.20, 4,448.40 and 2,475.20

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Solution

The fourth proportional to 2,961.20, 4,448.40 and 2,475.20 is: 3,718.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.20 : 4,448.40 = 2,475.20 : x
  2. Step 2: Convert to fraction form
    2,961.20/4,448.40 = 2,475.20/x
  3. Step 3: Cross multiply
    2,961.20x = 4,448.40 × 2,475.20
  4. Step 4: Simplify right side
    2,961.20x = 11,010,679.68
  5. Step 5: Solve for x
    x = 11,010,679.68/2,961.20
  6. Step 6: Final answer
    x = 3,718.32

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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.