Home / 5,406.45-7,457.91-3,389.43

Finding the Fourth Proportional to 5,406.45, 7,457.91 and 3,389.43

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Solution

The fourth proportional to 5,406.45, 7,457.91 and 3,389.43 is: 4,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.45 : 7,457.91 = 3,389.43 : x
  2. Step 2: Convert to fraction form
    5,406.45/7,457.91 = 3,389.43/x
  3. Step 3: Cross multiply
    5,406.45x = 7,457.91 × 3,389.43
  4. Step 4: Simplify right side
    5,406.45x = 25,278,063.89
  5. Step 5: Solve for x
    x = 25,278,063.89/5,406.45
  6. Step 6: Final answer
    x = 4,675.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.