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Finding the Fourth Proportional to 2,798.60, 4,197.81 and 1,153.89

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Solution

The fourth proportional to 2,798.60, 4,197.81 and 1,153.89 is: 1,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.60 : 4,197.81 = 1,153.89 : x
  2. Step 2: Convert to fraction form
    2,798.60/4,197.81 = 1,153.89/x
  3. Step 3: Cross multiply
    2,798.60x = 4,197.81 × 1,153.89
  4. Step 4: Simplify right side
    2,798.60x = 4,843,810.98
  5. Step 5: Solve for x
    x = 4,843,810.98/2,798.60
  6. Step 6: Final answer
    x = 1,730.80

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Why These Related Problems?

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