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Finding the Fourth Proportional to 1,165.98, 1,748.21 and 541.02

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Solution

The fourth proportional to 1,165.98, 1,748.21 and 541.02 is: 811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.98 : 1,748.21 = 541.02 : x
  2. Step 2: Convert to fraction form
    1,165.98/1,748.21 = 541.02/x
  3. Step 3: Cross multiply
    1,165.98x = 1,748.21 × 541.02
  4. Step 4: Simplify right side
    1,165.98x = 945,816.57
  5. Step 5: Solve for x
    x = 945,816.57/1,165.98
  6. Step 6: Final answer
    x = 811.18

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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.