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Finding the Fourth Proportional to 7,224.09, 9,968.02 and 4,390.98

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Solution

The fourth proportional to 7,224.09, 9,968.02 and 4,390.98 is: 6,058.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.09 : 9,968.02 = 4,390.98 : x
  2. Step 2: Convert to fraction form
    7,224.09/9,968.02 = 4,390.98/x
  3. Step 3: Cross multiply
    7,224.09x = 9,968.02 × 4,390.98
  4. Step 4: Simplify right side
    7,224.09x = 43,769,376.46
  5. Step 5: Solve for x
    x = 43,769,376.46/7,224.09
  6. Step 6: Final answer
    x = 6,058.81

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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.