Home / 5,173.50-7,760.21-1,277.91

Finding the Fourth Proportional to 5,173.50, 7,760.21 and 1,277.91

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Solution

The fourth proportional to 5,173.50, 7,760.21 and 1,277.91 is: 1,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.50 : 7,760.21 = 1,277.91 : x
  2. Step 2: Convert to fraction form
    5,173.50/7,760.21 = 1,277.91/x
  3. Step 3: Cross multiply
    5,173.50x = 7,760.21 × 1,277.91
  4. Step 4: Simplify right side
    5,173.50x = 9,916,843.57
  5. Step 5: Solve for x
    x = 9,916,843.57/5,173.50
  6. Step 6: Final answer
    x = 1,916.85

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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.