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Finding the Fourth Proportional to 5,372.68, 7,411.50 and 3,379.48

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Solution

The fourth proportional to 5,372.68, 7,411.50 and 3,379.48 is: 4,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.68 : 7,411.50 = 3,379.48 : x
  2. Step 2: Convert to fraction form
    5,372.68/7,411.50 = 3,379.48/x
  3. Step 3: Cross multiply
    5,372.68x = 7,411.50 × 3,379.48
  4. Step 4: Simplify right side
    5,372.68x = 25,047,016.02
  5. Step 5: Solve for x
    x = 25,047,016.02/5,372.68
  6. Step 6: Final answer
    x = 4,661.92

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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.