Home / 5,233.12-7,850.88-2,155.12

Finding the Fourth Proportional to 5,233.12, 7,850.88 and 2,155.12

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Solution

The fourth proportional to 5,233.12, 7,850.88 and 2,155.12 is: 3,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,233.12 : 7,850.88 = 2,155.12 : x
  2. Step 2: Convert to fraction form
    5,233.12/7,850.88 = 2,155.12/x
  3. Step 3: Cross multiply
    5,233.12x = 7,850.88 × 2,155.12
  4. Step 4: Simplify right side
    5,233.12x = 16,919,588.51
  5. Step 5: Solve for x
    x = 16,919,588.51/5,233.12
  6. Step 6: Final answer
    x = 3,233.17

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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.