Home / 6,621.94-9,138.36-3,637.69

Finding the Fourth Proportional to 6,621.94, 9,138.36 and 3,637.69

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Solution

The fourth proportional to 6,621.94, 9,138.36 and 3,637.69 is: 5,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.94 : 9,138.36 = 3,637.69 : x
  2. Step 2: Convert to fraction form
    6,621.94/9,138.36 = 3,637.69/x
  3. Step 3: Cross multiply
    6,621.94x = 9,138.36 × 3,637.69
  4. Step 4: Simplify right side
    6,621.94x = 33,242,520.79
  5. Step 5: Solve for x
    x = 33,242,520.79/6,621.94
  6. Step 6: Final answer
    x = 5,020.06

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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.