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Finding the Fourth Proportional to 5,117.52, 7,676.16 and 2,651.52

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Solution

The fourth proportional to 5,117.52, 7,676.16 and 2,651.52 is: 3,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.52 : 7,676.16 = 2,651.52 : x
  2. Step 2: Convert to fraction form
    5,117.52/7,676.16 = 2,651.52/x
  3. Step 3: Cross multiply
    5,117.52x = 7,676.16 × 2,651.52
  4. Step 4: Simplify right side
    5,117.52x = 20,353,491.76
  5. Step 5: Solve for x
    x = 20,353,491.76/5,117.52
  6. Step 6: Final answer
    x = 3,977.22

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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.