Home / 5,131.62-7,697.16-1,621.44

Finding the Fourth Proportional to 5,131.62, 7,697.16 and 1,621.44

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Solution

The fourth proportional to 5,131.62, 7,697.16 and 1,621.44 is: 2,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.62 : 7,697.16 = 1,621.44 : x
  2. Step 2: Convert to fraction form
    5,131.62/7,697.16 = 1,621.44/x
  3. Step 3: Cross multiply
    5,131.62x = 7,697.16 × 1,621.44
  4. Step 4: Simplify right side
    5,131.62x = 12,480,483.11
  5. Step 5: Solve for x
    x = 12,480,483.11/5,131.62
  6. Step 6: Final answer
    x = 2,432.07

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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.