Home / 5,137.20-7,700.40-2,941.20

Finding the Fourth Proportional to 5,137.20, 7,700.40 and 2,941.20

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Solution

The fourth proportional to 5,137.20, 7,700.40 and 2,941.20 is: 4,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.20 : 7,700.40 = 2,941.20 : x
  2. Step 2: Convert to fraction form
    5,137.20/7,700.40 = 2,941.20/x
  3. Step 3: Cross multiply
    5,137.20x = 7,700.40 × 2,941.20
  4. Step 4: Simplify right side
    5,137.20x = 22,648,416.48
  5. Step 5: Solve for x
    x = 22,648,416.48/5,137.20
  6. Step 6: Final answer
    x = 4,408.71

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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.