Home / 5,091.92-7,637.76-1,629.20

Finding the Fourth Proportional to 5,091.92, 7,637.76 and 1,629.20

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Solution

The fourth proportional to 5,091.92, 7,637.76 and 1,629.20 is: 2,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.92 : 7,637.76 = 1,629.20 : x
  2. Step 2: Convert to fraction form
    5,091.92/7,637.76 = 1,629.20/x
  3. Step 3: Cross multiply
    5,091.92x = 7,637.76 × 1,629.20
  4. Step 4: Simplify right side
    5,091.92x = 12,443,438.59
  5. Step 5: Solve for x
    x = 12,443,438.59/5,091.92
  6. Step 6: Final answer
    x = 2,443.76

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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.