Home / 6,621.83-9,138.09-3,637.85

Finding the Fourth Proportional to 6,621.83, 9,138.09 and 3,637.85

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Solution

The fourth proportional to 6,621.83, 9,138.09 and 3,637.85 is: 5,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.83 : 9,138.09 = 3,637.85 : x
  2. Step 2: Convert to fraction form
    6,621.83/9,138.09 = 3,637.85/x
  3. Step 3: Cross multiply
    6,621.83x = 9,138.09 × 3,637.85
  4. Step 4: Simplify right side
    6,621.83x = 33,242,955.02
  5. Step 5: Solve for x
    x = 33,242,955.02/6,621.83
  6. Step 6: Final answer
    x = 5,020.21

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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.