Home / 6,646.80-9,176.85-4,131.60

Finding the Fourth Proportional to 6,646.80, 9,176.85 and 4,131.60

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Solution

The fourth proportional to 6,646.80, 9,176.85 and 4,131.60 is: 5,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.80 : 9,176.85 = 4,131.60 : x
  2. Step 2: Convert to fraction form
    6,646.80/9,176.85 = 4,131.60/x
  3. Step 3: Cross multiply
    6,646.80x = 9,176.85 × 4,131.60
  4. Step 4: Simplify right side
    6,646.80x = 37,915,073.46
  5. Step 5: Solve for x
    x = 37,915,073.46/6,646.80
  6. Step 6: Final answer
    x = 5,704.26

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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.