Home / 5,091.68-7,637.60-2,797.76

Finding the Fourth Proportional to 5,091.68, 7,637.60 and 2,797.76

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Solution

The fourth proportional to 5,091.68, 7,637.60 and 2,797.76 is: 4,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.68 : 7,637.60 = 2,797.76 : x
  2. Step 2: Convert to fraction form
    5,091.68/7,637.60 = 2,797.76/x
  3. Step 3: Cross multiply
    5,091.68x = 7,637.60 × 2,797.76
  4. Step 4: Simplify right side
    5,091.68x = 21,368,171.78
  5. Step 5: Solve for x
    x = 21,368,171.78/5,091.68
  6. Step 6: Final answer
    x = 4,196.68

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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.