Home / 3,586.13-5,379.03-1,638.30

Finding the Fourth Proportional to 3,586.13, 5,379.03 and 1,638.30

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Solution

The fourth proportional to 3,586.13, 5,379.03 and 1,638.30 is: 2,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.13 : 5,379.03 = 1,638.30 : x
  2. Step 2: Convert to fraction form
    3,586.13/5,379.03 = 1,638.30/x
  3. Step 3: Cross multiply
    3,586.13x = 5,379.03 × 1,638.30
  4. Step 4: Simplify right side
    3,586.13x = 8,812,464.85
  5. Step 5: Solve for x
    x = 8,812,464.85/3,586.13
  6. Step 6: Final answer
    x = 2,457.38

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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.