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Finding the Fourth Proportional to 7,885.30, 11,822.55 and 3,727.30

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Solution

The fourth proportional to 7,885.30, 11,822.55 and 3,727.30 is: 5,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.30 : 11,822.55 = 3,727.30 : x
  2. Step 2: Convert to fraction form
    7,885.30/11,822.55 = 3,727.30/x
  3. Step 3: Cross multiply
    7,885.30x = 11,822.55 × 3,727.30
  4. Step 4: Simplify right side
    7,885.30x = 44,066,190.62
  5. Step 5: Solve for x
    x = 44,066,190.62/7,885.30
  6. Step 6: Final answer
    x = 5,588.40

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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.