Home / 7,758.32-11,637.86-2,212.05

Finding the Fourth Proportional to 7,758.32, 11,637.86 and 2,212.05

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Solution

The fourth proportional to 7,758.32, 11,637.86 and 2,212.05 is: 3,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.32 : 11,637.86 = 2,212.05 : x
  2. Step 2: Convert to fraction form
    7,758.32/11,637.86 = 2,212.05/x
  3. Step 3: Cross multiply
    7,758.32x = 11,637.86 × 2,212.05
  4. Step 4: Simplify right side
    7,758.32x = 25,743,528.21
  5. Step 5: Solve for x
    x = 25,743,528.21/7,758.32
  6. Step 6: Final answer
    x = 3,318.18

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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.