Home / 5,381.79-7,426.53-3,144.30

Finding the Fourth Proportional to 5,381.79, 7,426.53 and 3,144.30

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Solution

The fourth proportional to 5,381.79, 7,426.53 and 3,144.30 is: 4,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.79 : 7,426.53 = 3,144.30 : x
  2. Step 2: Convert to fraction form
    5,381.79/7,426.53 = 3,144.30/x
  3. Step 3: Cross multiply
    5,381.79x = 7,426.53 × 3,144.30
  4. Step 4: Simplify right side
    5,381.79x = 23,351,238.28
  5. Step 5: Solve for x
    x = 23,351,238.28/5,381.79
  6. Step 6: Final answer
    x = 4,338.94

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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.