Home / 3,338.64-4,607.40-2,012.88

Finding the Fourth Proportional to 3,338.64, 4,607.40 and 2,012.88

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Solution

The fourth proportional to 3,338.64, 4,607.40 and 2,012.88 is: 2,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.64 : 4,607.40 = 2,012.88 : x
  2. Step 2: Convert to fraction form
    3,338.64/4,607.40 = 2,012.88/x
  3. Step 3: Cross multiply
    3,338.64x = 4,607.40 × 2,012.88
  4. Step 4: Simplify right side
    3,338.64x = 9,274,143.31
  5. Step 5: Solve for x
    x = 9,274,143.31/3,338.64
  6. Step 6: Final answer
    x = 2,777.82

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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.