Home / 3,638.32-5,457.31-1,173.09

Finding the Fourth Proportional to 3,638.32, 5,457.31 and 1,173.09

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Solution

The fourth proportional to 3,638.32, 5,457.31 and 1,173.09 is: 1,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.32 : 5,457.31 = 1,173.09 : x
  2. Step 2: Convert to fraction form
    3,638.32/5,457.31 = 1,173.09/x
  3. Step 3: Cross multiply
    3,638.32x = 5,457.31 × 1,173.09
  4. Step 4: Simplify right side
    3,638.32x = 6,401,915.79
  5. Step 5: Solve for x
    x = 6,401,915.79/3,638.32
  6. Step 6: Final answer
    x = 1,759.58

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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.