Home / 6,621.24-9,136.86-3,637.20

Finding the Fourth Proportional to 6,621.24, 9,136.86 and 3,637.20

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Solution

The fourth proportional to 6,621.24, 9,136.86 and 3,637.20 is: 5,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.24 : 9,136.86 = 3,637.20 : x
  2. Step 2: Convert to fraction form
    6,621.24/9,136.86 = 3,637.20/x
  3. Step 3: Cross multiply
    6,621.24x = 9,136.86 × 3,637.20
  4. Step 4: Simplify right side
    6,621.24x = 33,232,566.65
  5. Step 5: Solve for x
    x = 33,232,566.65/6,621.24
  6. Step 6: Final answer
    x = 5,019.09

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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.