Home / 3,638.30-5,457.28-1,041.22

Finding the Fourth Proportional to 3,638.30, 5,457.28 and 1,041.22

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Solution

The fourth proportional to 3,638.30, 5,457.28 and 1,041.22 is: 1,561.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.30 : 5,457.28 = 1,041.22 : x
  2. Step 2: Convert to fraction form
    3,638.30/5,457.28 = 1,041.22/x
  3. Step 3: Cross multiply
    3,638.30x = 5,457.28 × 1,041.22
  4. Step 4: Simplify right side
    3,638.30x = 5,682,229.08
  5. Step 5: Solve for x
    x = 5,682,229.08/3,638.30
  6. Step 6: Final answer
    x = 1,561.78

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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.