Home / 5,510.72-7,604.64-3,621.44

Finding the Fourth Proportional to 5,510.72, 7,604.64 and 3,621.44

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Solution

The fourth proportional to 5,510.72, 7,604.64 and 3,621.44 is: 4,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.72 : 7,604.64 = 3,621.44 : x
  2. Step 2: Convert to fraction form
    5,510.72/7,604.64 = 3,621.44/x
  3. Step 3: Cross multiply
    5,510.72x = 7,604.64 × 3,621.44
  4. Step 4: Simplify right side
    5,510.72x = 27,539,747.48
  5. Step 5: Solve for x
    x = 27,539,747.48/5,510.72
  6. Step 6: Final answer
    x = 4,997.49

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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.