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Finding the Fourth Proportional to 7,312.75, 10,091.60 and 4,169.01

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Solution

The fourth proportional to 7,312.75, 10,091.60 and 4,169.01 is: 5,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.75 : 10,091.60 = 4,169.01 : x
  2. Step 2: Convert to fraction form
    7,312.75/10,091.60 = 4,169.01/x
  3. Step 3: Cross multiply
    7,312.75x = 10,091.60 × 4,169.01
  4. Step 4: Simplify right side
    7,312.75x = 42,071,981.32
  5. Step 5: Solve for x
    x = 42,071,981.32/7,312.75
  6. Step 6: Final answer
    x = 5,753.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.