Home / 3,286.46-4,931.70-1,902.50

Finding the Fourth Proportional to 3,286.46, 4,931.70 and 1,902.50

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Solution

The fourth proportional to 3,286.46, 4,931.70 and 1,902.50 is: 2,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.46 : 4,931.70 = 1,902.50 : x
  2. Step 2: Convert to fraction form
    3,286.46/4,931.70 = 1,902.50/x
  3. Step 3: Cross multiply
    3,286.46x = 4,931.70 × 1,902.50
  4. Step 4: Simplify right side
    3,286.46x = 9,382,559.25
  5. Step 5: Solve for x
    x = 9,382,559.25/3,286.46
  6. Step 6: Final answer
    x = 2,854.91

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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.