Home / 3,551.92-4,908.40-2,666.20

Finding the Fourth Proportional to 3,551.92, 4,908.40 and 2,666.20

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Solution

The fourth proportional to 3,551.92, 4,908.40 and 2,666.20 is: 3,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.92 : 4,908.40 = 2,666.20 : x
  2. Step 2: Convert to fraction form
    3,551.92/4,908.40 = 2,666.20/x
  3. Step 3: Cross multiply
    3,551.92x = 4,908.40 × 2,666.20
  4. Step 4: Simplify right side
    3,551.92x = 13,086,776.08
  5. Step 5: Solve for x
    x = 13,086,776.08/3,551.92
  6. Step 6: Final answer
    x = 3,684.42

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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.