Home / 3,336.80-4,606.08-2,986.88

Finding the Fourth Proportional to 3,336.80, 4,606.08 and 2,986.88

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Solution

The fourth proportional to 3,336.80, 4,606.08 and 2,986.88 is: 4,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.80 : 4,606.08 = 2,986.88 : x
  2. Step 2: Convert to fraction form
    3,336.80/4,606.08 = 2,986.88/x
  3. Step 3: Cross multiply
    3,336.80x = 4,606.08 × 2,986.88
  4. Step 4: Simplify right side
    3,336.80x = 13,757,808.23
  5. Step 5: Solve for x
    x = 13,757,808.23/3,336.80
  6. Step 6: Final answer
    x = 4,123.05

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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.