Home / 3,551.32-4,900.86-1,979.50

Finding the Fourth Proportional to 3,551.32, 4,900.86 and 1,979.50

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Solution

The fourth proportional to 3,551.32, 4,900.86 and 1,979.50 is: 2,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.32 : 4,900.86 = 1,979.50 : x
  2. Step 2: Convert to fraction form
    3,551.32/4,900.86 = 1,979.50/x
  3. Step 3: Cross multiply
    3,551.32x = 4,900.86 × 1,979.50
  4. Step 4: Simplify right side
    3,551.32x = 9,701,252.37
  5. Step 5: Solve for x
    x = 9,701,252.37/3,551.32
  6. Step 6: Final answer
    x = 2,731.73

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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.