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Finding the Fourth Proportional to 7,182.36, 9,914.34 and 4,199.15

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Solution

The fourth proportional to 7,182.36, 9,914.34 and 4,199.15 is: 5,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.36 : 9,914.34 = 4,199.15 : x
  2. Step 2: Convert to fraction form
    7,182.36/9,914.34 = 4,199.15/x
  3. Step 3: Cross multiply
    7,182.36x = 9,914.34 × 4,199.15
  4. Step 4: Simplify right side
    7,182.36x = 41,631,800.81
  5. Step 5: Solve for x
    x = 41,631,800.81/7,182.36
  6. Step 6: Final answer
    x = 5,796.40

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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.