Home / 5,143.75-7,715.66-1,446.05

Finding the Fourth Proportional to 5,143.75, 7,715.66 and 1,446.05

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Solution

The fourth proportional to 5,143.75, 7,715.66 and 1,446.05 is: 2,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.75 : 7,715.66 = 1,446.05 : x
  2. Step 2: Convert to fraction form
    5,143.75/7,715.66 = 1,446.05/x
  3. Step 3: Cross multiply
    5,143.75x = 7,715.66 × 1,446.05
  4. Step 4: Simplify right side
    5,143.75x = 11,157,242.20
  5. Step 5: Solve for x
    x = 11,157,242.20/5,143.75
  6. Step 6: Final answer
    x = 2,169.09

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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.