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Finding the Fourth Proportional to 5,369.40, 7,378.38 and 4,372.56

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Solution

The fourth proportional to 5,369.40, 7,378.38 and 4,372.56 is: 6,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.40 : 7,378.38 = 4,372.56 : x
  2. Step 2: Convert to fraction form
    5,369.40/7,378.38 = 4,372.56/x
  3. Step 3: Cross multiply
    5,369.40x = 7,378.38 × 4,372.56
  4. Step 4: Simplify right side
    5,369.40x = 32,262,409.25
  5. Step 5: Solve for x
    x = 32,262,409.25/5,369.40
  6. Step 6: Final answer
    x = 6,008.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.