Home / 5,057.38-7,581.45-1,768.68

Finding the Fourth Proportional to 5,057.38, 7,581.45 and 1,768.68

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Solution

The fourth proportional to 5,057.38, 7,581.45 and 1,768.68 is: 2,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.38 : 7,581.45 = 1,768.68 : x
  2. Step 2: Convert to fraction form
    5,057.38/7,581.45 = 1,768.68/x
  3. Step 3: Cross multiply
    5,057.38x = 7,581.45 × 1,768.68
  4. Step 4: Simplify right side
    5,057.38x = 13,409,150.34
  5. Step 5: Solve for x
    x = 13,409,150.34/5,057.38
  6. Step 6: Final answer
    x = 2,651.40

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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.