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Finding the Fourth Proportional to 1,493.66, 2,060.91 and 863.99

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Solution

The fourth proportional to 1,493.66, 2,060.91 and 863.99 is: 1,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.66 : 2,060.91 = 863.99 : x
  2. Step 2: Convert to fraction form
    1,493.66/2,060.91 = 863.99/x
  3. Step 3: Cross multiply
    1,493.66x = 2,060.91 × 863.99
  4. Step 4: Simplify right side
    1,493.66x = 1,780,605.63
  5. Step 5: Solve for x
    x = 1,780,605.63/1,493.66
  6. Step 6: Final answer
    x = 1,192.11

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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.