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Finding the Fourth Proportional to 2,775.69, 4,155.28 and 1,676.72

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Solution

The fourth proportional to 2,775.69, 4,155.28 and 1,676.72 is: 2,510.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.69 : 4,155.28 = 1,676.72 : x
  2. Step 2: Convert to fraction form
    2,775.69/4,155.28 = 1,676.72/x
  3. Step 3: Cross multiply
    2,775.69x = 4,155.28 × 1,676.72
  4. Step 4: Simplify right side
    2,775.69x = 6,967,241.08
  5. Step 5: Solve for x
    x = 6,967,241.08/2,775.69
  6. Step 6: Final answer
    x = 2,510.09

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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.