Home / 3,426.35-4,728.04-1,913.85

Finding the Fourth Proportional to 3,426.35, 4,728.04 and 1,913.85

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Solution

The fourth proportional to 3,426.35, 4,728.04 and 1,913.85 is: 2,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.35 : 4,728.04 = 1,913.85 : x
  2. Step 2: Convert to fraction form
    3,426.35/4,728.04 = 1,913.85/x
  3. Step 3: Cross multiply
    3,426.35x = 4,728.04 × 1,913.85
  4. Step 4: Simplify right side
    3,426.35x = 9,048,754.57
  5. Step 5: Solve for x
    x = 9,048,754.57/3,426.35
  6. Step 6: Final answer
    x = 2,640.94

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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.