Home / 5,347.43-7,379.85-2,989.43

Finding the Fourth Proportional to 5,347.43, 7,379.85 and 2,989.43

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Solution

The fourth proportional to 5,347.43, 7,379.85 and 2,989.43 is: 4,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.43 : 7,379.85 = 2,989.43 : x
  2. Step 2: Convert to fraction form
    5,347.43/7,379.85 = 2,989.43/x
  3. Step 3: Cross multiply
    5,347.43x = 7,379.85 × 2,989.43
  4. Step 4: Simplify right side
    5,347.43x = 22,061,544.99
  5. Step 5: Solve for x
    x = 22,061,544.99/5,347.43
  6. Step 6: Final answer
    x = 4,125.64

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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.