Home / 2,654.66-3,980.84-1,337.60

Finding the Fourth Proportional to 2,654.66, 3,980.84 and 1,337.60

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Solution

The fourth proportional to 2,654.66, 3,980.84 and 1,337.60 is: 2,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.66 : 3,980.84 = 1,337.60 : x
  2. Step 2: Convert to fraction form
    2,654.66/3,980.84 = 1,337.60/x
  3. Step 3: Cross multiply
    2,654.66x = 3,980.84 × 1,337.60
  4. Step 4: Simplify right side
    2,654.66x = 5,324,744.99
  5. Step 5: Solve for x
    x = 5,324,744.99/2,654.66
  6. Step 6: Final answer
    x = 2,005.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.