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Finding the Fourth Proportional to 5,372.92, 7,415 and 3,015.24

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Solution

The fourth proportional to 5,372.92, 7,415 and 3,015.24 is: 4,161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.92 : 7,415 = 3,015.24 : x
  2. Step 2: Convert to fraction form
    5,372.92/7,415 = 3,015.24/x
  3. Step 3: Cross multiply
    5,372.92x = 7,415 × 3,015.24
  4. Step 4: Simplify right side
    5,372.92x = 22,358,004.60
  5. Step 5: Solve for x
    x = 22,358,004.60/5,372.92
  6. Step 6: Final answer
    x = 4,161.24

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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.