Home / 3,445.28-5,168.34-1,136.72

Finding the Fourth Proportional to 3,445.28, 5,168.34 and 1,136.72

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Solution

The fourth proportional to 3,445.28, 5,168.34 and 1,136.72 is: 1,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.28 : 5,168.34 = 1,136.72 : x
  2. Step 2: Convert to fraction form
    3,445.28/5,168.34 = 1,136.72/x
  3. Step 3: Cross multiply
    3,445.28x = 5,168.34 × 1,136.72
  4. Step 4: Simplify right side
    3,445.28x = 5,874,955.44
  5. Step 5: Solve for x
    x = 5,874,955.44/3,445.28
  6. Step 6: Final answer
    x = 1,705.22

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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.