Home / 5,013.72-6,919.20-2,775.85

Finding the Fourth Proportional to 5,013.72, 6,919.20 and 2,775.85

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Solution

The fourth proportional to 5,013.72, 6,919.20 and 2,775.85 is: 3,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,013.72 : 6,919.20 = 2,775.85 : x
  2. Step 2: Convert to fraction form
    5,013.72/6,919.20 = 2,775.85/x
  3. Step 3: Cross multiply
    5,013.72x = 6,919.20 × 2,775.85
  4. Step 4: Simplify right side
    5,013.72x = 19,206,644.02
  5. Step 5: Solve for x
    x = 19,206,644.02/5,013.72
  6. Step 6: Final answer
    x = 3,830.82

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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.