Home / 7,451.80-11,179.38-2,521.12

Finding the Fourth Proportional to 7,451.80, 11,179.38 and 2,521.12

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Solution

The fourth proportional to 7,451.80, 11,179.38 and 2,521.12 is: 3,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.80 : 11,179.38 = 2,521.12 : x
  2. Step 2: Convert to fraction form
    7,451.80/11,179.38 = 2,521.12/x
  3. Step 3: Cross multiply
    7,451.80x = 11,179.38 × 2,521.12
  4. Step 4: Simplify right side
    7,451.80x = 28,184,558.51
  5. Step 5: Solve for x
    x = 28,184,558.51/7,451.80
  6. Step 6: Final answer
    x = 3,782.25

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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.