Home / 3,411.85-5,109.57-1,946.56

Finding the Fourth Proportional to 3,411.85, 5,109.57 and 1,946.56

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Solution

The fourth proportional to 3,411.85, 5,109.57 and 1,946.56 is: 2,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.85 : 5,109.57 = 1,946.56 : x
  2. Step 2: Convert to fraction form
    3,411.85/5,109.57 = 1,946.56/x
  3. Step 3: Cross multiply
    3,411.85x = 5,109.57 × 1,946.56
  4. Step 4: Simplify right side
    3,411.85x = 9,946,081.84
  5. Step 5: Solve for x
    x = 9,946,081.84/3,411.85
  6. Step 6: Final answer
    x = 2,915.16

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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.