Home / 3,158.80-4,359.22-1,900.36

Finding the Fourth Proportional to 3,158.80, 4,359.22 and 1,900.36

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Solution

The fourth proportional to 3,158.80, 4,359.22 and 1,900.36 is: 2,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.80 : 4,359.22 = 1,900.36 : x
  2. Step 2: Convert to fraction form
    3,158.80/4,359.22 = 1,900.36/x
  3. Step 3: Cross multiply
    3,158.80x = 4,359.22 × 1,900.36
  4. Step 4: Simplify right side
    3,158.80x = 8,284,088.02
  5. Step 5: Solve for x
    x = 8,284,088.02/3,158.80
  6. Step 6: Final answer
    x = 2,622.54

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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.