Home / 4,921.54-7,382.30-1,999.16

Finding the Fourth Proportional to 4,921.54, 7,382.30 and 1,999.16

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Solution

The fourth proportional to 4,921.54, 7,382.30 and 1,999.16 is: 2,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.54 : 7,382.30 = 1,999.16 : x
  2. Step 2: Convert to fraction form
    4,921.54/7,382.30 = 1,999.16/x
  3. Step 3: Cross multiply
    4,921.54x = 7,382.30 × 1,999.16
  4. Step 4: Simplify right side
    4,921.54x = 14,758,398.87
  5. Step 5: Solve for x
    x = 14,758,398.87/4,921.54
  6. Step 6: Final answer
    x = 2,998.74

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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.