Home / 5,381.66-7,426.67-2,991.62

Finding the Fourth Proportional to 5,381.66, 7,426.67 and 2,991.62

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Solution

The fourth proportional to 5,381.66, 7,426.67 and 2,991.62 is: 4,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.66 : 7,426.67 = 2,991.62 : x
  2. Step 2: Convert to fraction form
    5,381.66/7,426.67 = 2,991.62/x
  3. Step 3: Cross multiply
    5,381.66x = 7,426.67 × 2,991.62
  4. Step 4: Simplify right side
    5,381.66x = 22,217,800.55
  5. Step 5: Solve for x
    x = 22,217,800.55/5,381.66
  6. Step 6: Final answer
    x = 4,128.43

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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.