Home / 6,629.21-9,144.50-3,975.08

Finding the Fourth Proportional to 6,629.21, 9,144.50 and 3,975.08

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Solution

The fourth proportional to 6,629.21, 9,144.50 and 3,975.08 is: 5,483.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.21 : 9,144.50 = 3,975.08 : x
  2. Step 2: Convert to fraction form
    6,629.21/9,144.50 = 3,975.08/x
  3. Step 3: Cross multiply
    6,629.21x = 9,144.50 × 3,975.08
  4. Step 4: Simplify right side
    6,629.21x = 36,350,053.46
  5. Step 5: Solve for x
    x = 36,350,053.46/6,629.21
  6. Step 6: Final answer
    x = 5,483.32

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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.