Home / 6,621.21-9,137.40-3,637.17

Finding the Fourth Proportional to 6,621.21, 9,137.40 and 3,637.17

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Solution

The fourth proportional to 6,621.21, 9,137.40 and 3,637.17 is: 5,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.21 : 9,137.40 = 3,637.17 : x
  2. Step 2: Convert to fraction form
    6,621.21/9,137.40 = 3,637.17/x
  3. Step 3: Cross multiply
    6,621.21x = 9,137.40 × 3,637.17
  4. Step 4: Simplify right side
    6,621.21x = 33,234,277.16
  5. Step 5: Solve for x
    x = 33,234,277.16/6,621.21
  6. Step 6: Final answer
    x = 5,019.37

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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.