Home / 3,125.18-4,687.80-1,900.46

Finding the Fourth Proportional to 3,125.18, 4,687.80 and 1,900.46

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Solution

The fourth proportional to 3,125.18, 4,687.80 and 1,900.46 is: 2,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.18 : 4,687.80 = 1,900.46 : x
  2. Step 2: Convert to fraction form
    3,125.18/4,687.80 = 1,900.46/x
  3. Step 3: Cross multiply
    3,125.18x = 4,687.80 × 1,900.46
  4. Step 4: Simplify right side
    3,125.18x = 8,908,976.39
  5. Step 5: Solve for x
    x = 8,908,976.39/3,125.18
  6. Step 6: Final answer
    x = 2,850.71

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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.