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Finding the Fourth Proportional to 4,928.86, 7,391.72 and 1,641.08

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Solution

The fourth proportional to 4,928.86, 7,391.72 and 1,641.08 is: 2,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.86 : 7,391.72 = 1,641.08 : x
  2. Step 2: Convert to fraction form
    4,928.86/7,391.72 = 1,641.08/x
  3. Step 3: Cross multiply
    4,928.86x = 7,391.72 × 1,641.08
  4. Step 4: Simplify right side
    4,928.86x = 12,130,403.86
  5. Step 5: Solve for x
    x = 12,130,403.86/4,928.86
  6. Step 6: Final answer
    x = 2,461.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.