Home / 5,145.94-7,101.46-2,788.14

Finding the Fourth Proportional to 5,145.94, 7,101.46 and 2,788.14

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Solution

The fourth proportional to 5,145.94, 7,101.46 and 2,788.14 is: 3,847.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.94 : 7,101.46 = 2,788.14 : x
  2. Step 2: Convert to fraction form
    5,145.94/7,101.46 = 2,788.14/x
  3. Step 3: Cross multiply
    5,145.94x = 7,101.46 × 2,788.14
  4. Step 4: Simplify right side
    5,145.94x = 19,799,864.68
  5. Step 5: Solve for x
    x = 19,799,864.68/5,145.94
  6. Step 6: Final answer
    x = 3,847.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.